add initial project structure and configuration files #2
Conversation
WalkthroughIntroduces a Spring Boot 3 (Java 17) project scaffold with Gradle, Docker assets, MySQL configuration, and extensive Cursor rule/guideline files. Adds the main application entry point and application.yml. Includes design documentation and repository-wide ignore rules. No business logic changes or runtime features implemented. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
actor Dev as Developer
participant GW as Gradle Wrapper
participant Dock as Dockerfile (Build)
participant App as Spring Boot App
participant CFG as application.yml
participant DB as MySQL (docker-compose)
Dev->>GW: ./gradlew build
GW-->>Dev: build/libs/app.jar
Dev->>Dock: docker build -t app:latest .
Dock-->>Dev: Image app:latest
Dev->>DB: docker compose up db
Note over DB: mysql:8.0 running<br/>bitly_db
Dev->>App: docker run app:latest
App->>CFG: Load datasource & JPA settings
App->>DB: Connect (JDBC)
DB-->>App: Connection established
App-->>Dev: Application started
Estimated code review effort🎯 3 (Moderate) | ⏱️ ~25 minutes Poem
✨ Finishing Touches
🧪 Generate unit tests
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Pull Request Overview
This PR establishes the initial project structure for a URL shortener application called "bitly-mingi" built with Spring Boot 3 and Java 17. The setup includes Docker containerization, database configuration, and comprehensive development guidelines.
- Sets up Spring Boot application with MySQL database integration
- Configures Docker environment with MySQL 8.0 container
- Establishes comprehensive development rules and coding standards
Reviewed Changes
Copilot reviewed 18 out of 21 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| src/main/java/com/study/bitly/BitlyApplication.java | Main Spring Boot application entry point |
| src/main/resources/application.yml | Database and JPA configuration for MySQL connection |
| build.gradle | Not shown but referenced in Dockerfile for Gradle build |
| settings.gradle | Project name configuration |
| gradlew | Gradle wrapper script for build automation |
| gradle/wrapper/gradle-wrapper.properties | Gradle wrapper configuration |
| docker-compose.yml | MySQL database container setup |
| Dockerfile | Multi-stage build configuration for containerized deployment |
| .cursorrules | Development guidelines and coding standards |
| .cursor/rules/*.mdc | Detailed architectural and coding conventions |
| gemini.md | Project documentation explaining URL shortener architecture |
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| username: root | ||
| password: root |
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Hard-coded database credentials pose a security risk. Consider using environment variables or external configuration for username and password in production environments.
| username: root | |
| password: root | |
| username: ${DB_USERNAME} | |
| password: ${DB_PASSWORD} |
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Actionable comments posted: 22
🧹 Nitpick comments (21)
docker-compose.yml (1)
2-2: Optional: Drop the version key for Compose v2 syntax.Modern docker compose doesn’t require version; cleaner and future-proof.
-version: '3.8' +# version key not required with Compose v2.cursor/rules/globalexceptionhandler-class.mdc (1)
1-4: LGTM; consider encoding minimal conventions in the rule body.Suggest noting @RestControllerAdvice, returning ResponseEntity, and mapping common exceptions.
gradle/wrapper/gradle-wrapper.properties (2)
3-3: Optional: use the “all” distribution for IDE source navigation.Keeps Javadoc/sources locally and improves dev UX (slightly larger download).
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip +distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-all.zip
1-7: Add distributionSha256Sum to gradle-wrapper.propertiesdistributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip +distributionSha256Sum=20f1b1176237254a6fc204d8434196fa11a4cfb387567519c61556e8710aed78 networkTimeout=10000 validateDistributionUrl=true zipStoreBase=GRADLE_USER_HOME zipStorePath=wrapper/dists.cursor/rules/dto-conventions.mdc (1)
1-6: Broaden glob and capture a few pragmatic DTO rules.Covers nested packages and clarifies validation/naming.
--- description: Sets standards for Data Transfer Objects (DTOs), typically records, including parameter validation in compact canonical constructors. -globs: **/src/main/java/com/study/bitly/dtos/*.java +globs: **/src/main/java/com/study/bitly/dtos/**/*.java --- - Must be of type record, unless specified in a prompt otherwise. - Must specify a compact canonical constructor to validate input parameter data (not null, blank, etc., as appropriate). +- Must use jakarta.validation constraints on record components (e.g., @NotBlank, @Email, @Size). +- Should follow naming conventions: *XxxRequest, XxxResponse* (and avoid embedding business logic). +- Serialization must be Jackson-friendly (component names map to JSON fields; prefer simple types/records).src/main/resources/application.yml (1)
14-14: Nit: add a trailing newline.Silences YAML lint warning.
.cursor/rules/service-class-conventions.mdc (2)
5-7: Avoid hard requirement for “ServiceImpl” suffixAllow domain‑specific names (e.g., UrlService, DefaultUrlService) for clarity; an “Impl” suffix is optional.
-- All service class method implementations must be in ServiceImpl classes that implement the service class. +- Implement service interfaces in classes with meaningful names; an `Impl` suffix is optional.
11-11: Typo: TransactionTemplate is capitalizedMinor terminology fix.
-- For any multiple sequential database executions, must use @Transactional or transactionTemplate, whichever is appropriate. +- For any multiple sequential database executions, use @Transactional or TransactionTemplate, whichever is appropriate..cursor/rules/general-java-development-practices.mdc (1)
2-3: Anchor the rule to Java 17 / Spring Boot 3 and add static analysisMake the constraint explicit and encourage automated checks.
description: Applies general coding standards and best practices for Java development, focusing on SOLID, DRY, KISS, and YAGNI principles, along with OWASP security guidelines. globs: **/*.java +notes: + - Target Java 17 and Spring Boot 3.x across all modules. + - Enable SpotBugs/Checkstyle/PMD (or Error Prone) in the build for continuous feedback.gemini.md (5)
87-91: Consider 302/307 by default; reserve 301 for permanent links301 is hard‑cached by browsers/CDNs and hampers future changes/analytics. Use 302/307 for mutable targets; use 301 only when truly permanent.
45-49: Add negative‑cache and TTL guidanceCache misses (nonexistent keys) briefly to reduce DB load on hot invalid keys; set small TTL (e.g., 30–60s).
31-33: RDBMS vs NoSQL alignmentThe scaffold uses MySQL. Clarify that MySQL is primary storage with Redis as a cache; optionally mention a migration path to NoSQL at scale.
101-105: Harden input and redirect safety
- Validate allowed URL schemes (http/https only), normalize, and block localhost/internal CIDRs to avoid SSRF/open redirects.
- Use Safe Browsing only as an additional check.
79-79: Fix markdown list indentation (MD007)Indent nested list items by 2 spaces to satisfy markdownlint.
- * 예시: `id`가 `1000`이라면, Base62로 인코딩하면 `g8`이 됩니다. + * 예시: `id`가 `1000`이라면, Base62로 인코딩하면 `g8`이 됩니다.Apply similar 2‑space indentation to the flagged list items.
Also applies to: 84-85, 97-100, 102-105
.cursorrules (1)
30-33: Spring Data repositories don’t require @repository and not all queries should be JPQL
- Extending JpaRepository is sufficient for component scanning.
- Prefer derived queries; use JPQL/native only when needed.
-1. Must annotate repository classes with @Repository. -4. Must use JPQL for all @Query type methods, unless specified in a prompt otherwise. +1. @Repository is optional for Spring Data interfaces (detected automatically). +4. Prefer method-name derived queries; use JPQL or native queries only when necessary..cursor/rules/spring-boot-configuration.mdc (1)
11-11: Add trailing newline.Add a newline at EOF to satisfy POSIX/editor tooling.
.cursor/rules/repository-class-conventions.mdc (2)
5-5: Don’t require @repository for Spring Data interfaces.Spring Data detects interfaces extending JpaRepository without @repository; annotate only when you need custom exception translation.
Apply:
- Must annotate repository classes with @Repository. + Repositories extending Spring Data interfaces do not require @Repository; annotate only when custom exception translation or explicit stereotyping is desired.
10-10: Fix capitalization/grammar.Minor doc polish.
Apply:
- Must use a DTO as The data container for multi-join queries with @Query. + Must use a DTO as the data container for multi-join queries with @Query.build.gradle (2)
15-22: Consider baseline deps for validation/observability and testing.Optional but recommended for most Spring projects.
Apply:
dependencies { implementation 'org.springframework.boot:spring-boot-starter-web' implementation 'org.springframework.boot:spring-boot-starter-data-jpa' + implementation 'org.springframework.boot:spring-boot-starter-validation' + implementation 'org.springframework.boot:spring-boot-starter-actuator' runtimeOnly 'com.mysql:mysql-connector-j' compileOnly 'org.projectlombok:lombok' annotationProcessor 'org.projectlombok:lombok' testImplementation 'org.springframework.boot:spring-boot-starter-test' + testImplementation 'org.testcontainers:junit-jupiter' + testImplementation 'org.testcontainers:mysql' }
9-9: Prefer Gradle toolchains over sourceCompatibility string.Ensures consistent Java 17 regardless of local JDK.
Apply:
-sourceCompatibility = '17' +java { + toolchain { + languageVersion = JavaLanguageVersion.of(17) + } +}Dockerfile (1)
2-7: Use Gradle Wrapper and cache dependencies for faster, reproducible builds.Leverage the repo’s gradlew and BuildKit cache.
Apply:
-FROM gradle:8.5.0-jdk17-jammy AS build -WORKDIR /home/gradle/src -COPY build.gradle settings.gradle ./ -COPY src ./src -RUN gradle build --no-daemon +FROM eclipse-temurin:17-jdk-jammy AS build +WORKDIR /workspace +# Cache Gradle dependencies +COPY gradle gradle +COPY gradlew . +COPY build.gradle settings.gradle ./ +RUN --mount=type=cache,id=gradle,target=/root/.gradle ./gradlew --no-daemon --version +# Then copy sources and build the boot jar only +COPY src ./src +RUN --mount=type=cache,id=gradle,target=/root/.gradle ./gradlew --no-daemon clean bootJar -x testAnd use a JRE-only runtime image and non-root user:
-FROM openjdk:17-jdk-slim +FROM eclipse-temurin:17-jre-jammy WORKDIR /app COPY --from=build /home/gradle/src/build/libs/app.jar app.jar -ENTRYPOINT ["java","-jar","app.jar"] +RUN useradd -r -u 1001 appuser && chown -R appuser /app +USER appuser +ENTRYPOINT ["java","-jar","app.jar"]
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⛔ Files ignored due to path filters (1)
gradle/wrapper/gradle-wrapper.jaris excluded by!**/*.jar
📒 Files selected for processing (20)
.cursor/rules/apiresponse-class.mdc(1 hunks).cursor/rules/dto-conventions.mdc(1 hunks).cursor/rules/entity-class-conventions.mdc(1 hunks).cursor/rules/general-java-development-practices.mdc(1 hunks).cursor/rules/globalexceptionhandler-class.mdc(1 hunks).cursor/rules/repository-class-conventions.mdc(1 hunks).cursor/rules/restcontroller-conventions.mdc(1 hunks).cursor/rules/service-class-conventions.mdc(1 hunks).cursor/rules/spring-boot-configuration.mdc(1 hunks).cursorrules(1 hunks).gitignore(1 hunks)Dockerfile(1 hunks)build.gradle(1 hunks)docker-compose.yml(1 hunks)gemini.md(1 hunks)gradle/wrapper/gradle-wrapper.properties(1 hunks)gradlew(1 hunks)settings.gradle(1 hunks)src/main/java/com/study/bitly/BitlyApplication.java(1 hunks)src/main/resources/application.yml(1 hunks)
🧰 Additional context used
🪛 YAMLlint (1.37.1)
src/main/resources/application.yml
[error] 14-14: no new line character at the end of file
(new-line-at-end-of-file)
🪛 LanguageTool
gemini.md
[grammar] ~5-~5: There might be a mistake here.
Context: ...서 유용하게 사용되며, 링크 추적 및 분석에도 활용될 수 있습니다. 💻 본 문서는 URL 단축기의 핵심 기능, 시스템 아키텍처, 데이터베이스 설...
(QB_NEW_EN)
🪛 markdownlint-cli2 (0.17.2)
gemini.md
79-79: Unordered list indentation
Expected: 2; Actual: 4
(MD007, ul-indent)
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🔇 Additional comments (6)
.cursor/rules/apiresponse-class.mdc (1)
1-4: LGTM; verify glob path matches intended package.If the class lands under a different package (e.g., com.study.bitly.common), update the glob accordingly.
docker-compose.yml (1)
8-9: Port 3306 may collide with a local MySQL. Parameterize host port.Use HOST_MYSQL_PORT in .env to avoid conflicts.
settings.gradle (1)
1-1: LGTM; ensure name aligns with Docker/Jar references.Verify Dockerfile (ENTRYPOINT/COPY) points to the jar produced under name 'bitly-mingi'.
src/main/java/com/study/bitly/BitlyApplication.java (1)
6-10: LGTM: clean Spring Boot entry point.Entry class and bootstrap are correct.
.cursorrules (1)
56-56: Nice: resource-based REST paths guidanceThis aligns with common REST conventions; keep it.
gradlew (1)
1-252: Wrapper script looks standard; keep it.No issues spotted; good to rely on this for reproducible builds locally and in CI/CD.
| @@ -0,0 +1,9 @@ | |||
| --- | |||
| description: Sets the standards for entity class design including annotations, ID generation strategies, and relationship configurations for database interaction. | |||
| globs: **/src/main/java/com/example/entities/*.java | |||
There was a problem hiding this comment.
🛠️ Refactor suggestion
Fix glob to match this project’s package.
The current glob points to com.example; align to com.study.bitly.
-globs: **/src/main/java/com/example/entities/*.java
+globs: **/src/main/java/com/study/bitly/entities/**/*.java📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| globs: **/src/main/java/com/example/entities/*.java | |
| globs: **/src/main/java/com/study/bitly/entities/**/*.java |
🤖 Prompt for AI Agents
.cursor/rules/entity-class-conventions.mdc around line 3: the glob currently
targets com.example package (globs:
**/src/main/java/com/example/entities/*.java) but this project uses
com.study.bitly; update the glob to point to the correct package path (e.g.,
replace com/example with com/study/bitly) so the rule matches the project's
entity classes.
| - Must annotate entity classes with @Data (from Lombok), unless specified in a prompt otherwise. | ||
| - Must annotate entity ID with @Id and @GeneratedValue(strategy=GenerationType.IDENTITY). | ||
| - Must use FetchType.LAZY for relationships, unless specified in a prompt otherwise. | ||
| - Annotate entity properties properly according to best practices, e.g., @Size, @NotEmpty, @Email, etc. No newline at end of file |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Avoid Lombok @DaTa on JPA entities; tighten guidance.
@DaTa can generate problematic equals/hashCode/toString for entities and relationships.
- Must annotate entity classes with @Entity.
-- Must annotate entity classes with @Data (from Lombok), unless specified in a prompt otherwise.
+- Prefer Lombok @Getter/@Setter and explicitly manage @EqualsAndHashCode(onlyExplicitlyIncluded = true) and @ToString(exclude = {"relations"}).
- Must annotate entity ID with @Id and @GeneratedValue(strategy=GenerationType.IDENTITY).
- Must use FetchType.LAZY for relationships, unless specified in a prompt otherwise.
- Annotate entity properties properly according to best practices, e.g., @Size, @NotEmpty, @Email, etc.
+- Provide a protected no-args constructor for JPA; consider auditing fields (@CreatedDate, @LastModifiedDate) with @EntityListeners.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| - Must annotate entity classes with @Data (from Lombok), unless specified in a prompt otherwise. | |
| - Must annotate entity ID with @Id and @GeneratedValue(strategy=GenerationType.IDENTITY). | |
| - Must use FetchType.LAZY for relationships, unless specified in a prompt otherwise. | |
| - Annotate entity properties properly according to best practices, e.g., @Size, @NotEmpty, @Email, etc. | |
| - Must annotate entity classes with @Entity. | |
| - Prefer Lombok @Getter/@Setter and explicitly manage @EqualsAndHashCode(onlyExplicitlyIncluded = true) and @ToString(exclude = {"relations"}). | |
| - Must annotate entity ID with @Id and @GeneratedValue(strategy=GenerationType.IDENTITY). | |
| - Must use FetchType.LAZY for relationships, unless specified in a prompt otherwise. | |
| - Annotate entity properties properly according to best practices, e.g., @Size, @NotEmpty, @Email, etc. | |
| - Provide a protected no-args constructor for JPA; consider auditing fields (@CreatedDate, @LastModifiedDate) with @EntityListeners. |
🤖 Prompt for AI Agents
In .cursor/rules/entity-class-conventions.mdc around lines 6-9, remove the
blanket requirement to annotate JPA entity classes with Lombok @Data and instead
state that @Data is discouraged for entities because it generates
equals/hashCode/toString that can break persistence/relationships; require
either explicit getters/setters or limited Lombok usage (e.g., @Getter/@Setter
only) and, if Lombok equals/hashCode/toString are used, require explicit
configuration such as @EqualsAndHashCode(onlyExplicitlyIncluded = true) and
@ToString(exclude = "relationships") or implementation based on identifier
logic; keep the other rules (use @Id with @GeneratedValue(strategy =
GenerationType.IDENTITY), default FetchType.LAZY for relationships, and apply
JSR-303 annotations like @Size/@NotEmpty/@Email) but add a short note to prefer
explicit/controlled implementations for equals/hashCode/toString on entities.
| - Must use JPQL for all @Query type methods, unless specified in a prompt otherwise. | ||
| - Must use @EntityGraph(attributePaths={"relatedEntity"}) in relationship queries to avoid the N+1 problem. |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Make query guidance practical (JPQL vs native; N+1 mitigation).
Hard “must”s here are too rigid; prefer guidance with options.
Apply:
- Must use JPQL for all @Query type methods, unless specified in a prompt otherwise.
- Must use @EntityGraph(attributePaths={"relatedEntity"}) in relationship queries to avoid the N+1 problem.
+ Prefer JPQL for @Query methods; use native queries only when required (e.g., DB-specific features or performance).
+ To mitigate N+1, use @EntityGraph, fetch joins, or batching (hibernate.default_batch_fetch_size) as appropriate and verified by query plans.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| - Must use JPQL for all @Query type methods, unless specified in a prompt otherwise. | |
| - Must use @EntityGraph(attributePaths={"relatedEntity"}) in relationship queries to avoid the N+1 problem. | |
| - Prefer JPQL for @Query methods; use native queries only when required (e.g., DB-specific features or performance). | |
| - To mitigate N+1, use @EntityGraph, fetch joins, or batching (hibernate.default_batch_fetch_size) as appropriate and verified by query plans. |
🤖 Prompt for AI Agents
.cursor/rules/repository-class-conventions.mdc around lines 8-9: the two rules
are too rigid; replace the hard "Must" statements with practical guidance that
(1) prefers JPQL for @Query methods but permits native SQL when justified
(performance, DB-specific features) and requires a brief justification comment
on why native SQL is used, and (2) recommends using
@EntityGraph(attributePaths={"relatedEntity"}) or explicit JOIN FETCH clauses to
mitigate N+1 problems and note that either approach is acceptable depending on
the use-case; update the wording to "Prefer" or "Recommended" and add a short
note about documenting exceptions.
| @@ -0,0 +1,11 @@ | |||
| --- | |||
| description: Specifies standards for RestController classes, including API route mappings, HTTP method annotations, dependency injection, and error handling with ApiResponse and GlobalExceptionHandler. | |||
| globs: **/src/main/java/com/study/controllers/*.java | |||
There was a problem hiding this comment.
🛠️ Refactor suggestion
Fix glob path to match package (controllers under com.study.bitly)
Current glob misses the actual package and nested packages.
-globs: **/src/main/java/com/study/controllers/*.java
+globs: **/src/main/java/com/study/bitly/controllers/**/*.java📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| globs: **/src/main/java/com/study/controllers/*.java | |
| globs: **/src/main/java/com/study/bitly/controllers/**/*.java |
🤖 Prompt for AI Agents
.cursor/rules/restcontroller-conventions.mdc around line 3: the glob currently
targets **/src/main/java/com/study/controllers/*.java which misses the actual
package path and nested packages under com.study.bitly; update the glob to
include the bitly segment and nested folders (for example use
**/src/main/java/com/study/bitly/controllers/**/*.java or a broader
**/src/main/java/com/study/**/controllers/**/*.java) so it matches controller
classes in the correct package and any subpackages.
| - Class methods must use best practice HTTP method annotations, e.g, create = @postMapping("/create"), etc. | ||
| - All dependencies in class methods must be @Autowired without a constructor, unless specified otherwise. | ||
| - Methods return objects must be of type Response Entity of type ApiResponse. |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Correct annotations, paths, and return type
- Use proper case for Spring annotations.
- Prefer resource‑based paths over verb endpoints.
- Clarify ResponseEntity<ApiResponse<?>>.
-- Class methods must use best practice HTTP method annotations, e.g, create = @postMapping("/create"), etc.
-+ Use @PostMapping, @GetMapping, @PutMapping, @DeleteMapping with resource-based paths (e.g., @PostMapping("/users")).
-
-- Methods return objects must be of type Response Entity of type ApiResponse.
-+ Methods should return ResponseEntity<ApiResponse<?>>.📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| - Class methods must use best practice HTTP method annotations, e.g, create = @postMapping("/create"), etc. | |
| - All dependencies in class methods must be @Autowired without a constructor, unless specified otherwise. | |
| - Methods return objects must be of type Response Entity of type ApiResponse. | |
| - Use @PostMapping, @GetMapping, @PutMapping, @DeleteMapping with resource-based paths (e.g., @PostMapping("/users")). | |
| - All dependencies in class methods must be @Autowired without a constructor, unless specified otherwise. | |
| - Methods should return ResponseEntity<ApiResponse<?>>. |
🤖 Prompt for AI Agents
.cursor/rules/restcontroller-conventions.mdc around lines 7 to 9: the rules text
uses incorrect casing for Spring annotations, suggests verb-based endpoints, and
is ambiguous about the return type and dependency injection style; update the
guidance to use proper annotation casing (e.g., @PostMapping, @GetMapping,
@PutMapping, @DeleteMapping), prefer resource-based paths (e.g., POST /resources
to create, GET /resources/{id} to fetch) instead of verb endpoints, require
controller methods that return bodies to use ResponseEntity<ApiResponse<?>> (use
the wildcard generic) and clarify that dependencies should be injected with
@Autowired on fields (not via constructor) unless an exception is documented;
make these three concrete bullet points so implementers know to change
annotations, path conventions, and the return type signature.
| tasks.named('test') { | ||
| useJUnitPlatform() | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Ensure a single, predictable Boot jar for containerization.
Avoid producing both boot and plain jars; also fix the Docker COPY to a stable filename.
Apply:
tasks.named('test') {
useJUnitPlatform()
}
+
+// Produce a single Boot executable jar with a stable name for Docker
+bootJar {
+ archiveFileName = 'app.jar'
+}
+tasks.named('jar') {
+ enabled = false
+}Follow-up: adjust Dockerfile COPY to build/libs/app.jar (see comment there).
🤖 Prompt for AI Agents
In build.gradle around lines 24-26, ensure only a single predictable Spring Boot
jar is produced by disabling the plain jar and pinning the bootJar filename: add
tasks.named('jar') { enabled = false } and configure bootJar { archiveFileName =
'app.jar' } (or use archiveBaseName/version as needed) so the build produces
only build/libs/app.jar; then update the Dockerfile COPY to refer to
build/libs/app.jar as noted in the Dockerfile comment.
| environment: | ||
| MYSQL_DATABASE: 'bitly_db' | ||
| MYSQL_ROOT_PASSWORD: 'root' |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Avoid using root credentials; move secrets to .env and create an app user.
Using root/root in-compose is risky even for dev and couples secrets to VCS.
services:
db:
image: mysql:8.0
container_name: mysql_boot
restart: always
- ports:
- - "3306:3306"
- environment:
- MYSQL_DATABASE: 'bitly_db'
- MYSQL_ROOT_PASSWORD: 'root'
+ env_file:
+ - .env
+ environment:
+ MYSQL_DATABASE: ${MYSQL_DATABASE:-bitly_db}
+ MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD:-root}
+ MYSQL_USER: ${MYSQL_USER:-app_user}
+ MYSQL_PASSWORD: ${MYSQL_PASSWORD:-app_pass}
+ ports:
+ - "${HOST_MYSQL_PORT:-3306}:3306"
+ volumes:
+ - mysql_data:/var/lib/mysql
command:
- --character-set-server=utf8mb4
- --collation-server=utf8mb4_unicode_ci
+ healthcheck:
+ test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uroot", "-p${MYSQL_ROOT_PASSWORD:-root}"]
+ interval: 5s
+ timeout: 3s
+ retries: 30
+
+volumes:
+ mysql_data:Follow-up: add .env to .gitignore (see separate comment).
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| environment: | |
| MYSQL_DATABASE: 'bitly_db' | |
| MYSQL_ROOT_PASSWORD: 'root' | |
| services: | |
| db: | |
| image: mysql:8.0 | |
| container_name: mysql_boot | |
| restart: always | |
| env_file: | |
| - .env | |
| environment: | |
| MYSQL_DATABASE: ${MYSQL_DATABASE:-bitly_db} | |
| MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD:-root} | |
| MYSQL_USER: ${MYSQL_USER:-app_user} | |
| MYSQL_PASSWORD: ${MYSQL_PASSWORD:-app_pass} | |
| ports: | |
| - "${HOST_MYSQL_PORT:-3306}:3306" | |
| volumes: | |
| - mysql_data:/var/lib/mysql | |
| command: | |
| - --character-set-server=utf8mb4 | |
| - --collation-server=utf8mb4_unicode_ci | |
| healthcheck: | |
| test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "-uroot", "-p${MYSQL_ROOT_PASSWORD:-root}"] | |
| interval: 5s | |
| timeout: 3s | |
| retries: 30 | |
| volumes: | |
| mysql_data: |
🤖 Prompt for AI Agents
In docker-compose.yml around lines 10 to 12, the service is using hard-coded
root credentials (MYSQL_ROOT_PASSWORD='root') and committing secrets to VCS;
replace these with non-root application credentials and load them from an
external .env (or env_file) instead: add MYSQL_DATABASE, MYSQL_USER and
MYSQL_PASSWORD entries (for an app user) and remove or avoid hard-coded
MYSQL_ROOT_PASSWORD in the compose file, then create a .env containing the
secret values and reference it from docker-compose; finally add .env to
.gitignore so secrets aren’t committed.
| # Package stage | ||
| FROM openjdk:17-jdk-slim | ||
| WORKDIR /app | ||
| COPY --from=build /home/gradle/src/build/libs/*.jar app.jar |
There was a problem hiding this comment.
COPY may match multiple jars and fail the build.
Spring Boot often produces both app.jar and app-plain.jar; copying “*.jar” to a single filename is unsafe.
Apply (paired with build.gradle change to name the artifact app.jar):
-COPY --from=build /home/gradle/src/build/libs/*.jar app.jar
+COPY --from=build /home/gradle/src/build/libs/app.jar app.jar📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| COPY --from=build /home/gradle/src/build/libs/*.jar app.jar | |
| COPY --from=build /home/gradle/src/build/libs/app.jar app.jar |
🤖 Prompt for AI Agents
In Dockerfile at line 11, replace the unsafe glob COPY with a specific filename:
instead of COPY --from=build /home/gradle/src/build/libs/*.jar app.jar, copy the
exact artifact name (e.g. /home/gradle/src/build/libs/app.jar) and ensure
build.gradle/gradle.properties config sets the produced jar filename to app.jar
(configure bootJar.archiveFileName or equivalent) so the Docker COPY matches a
single known file.
| | 컬럼명 (Column Name) | 데이터 타입 (Data Type) | 설명 (Description) | | ||
| | -------------------- | ----------------------- | -------------------------------------------------- | | ||
| | `id` | BIGINT (Auto Increment) | 고유 식별자 (Primary Key) | | ||
| | `original_url` | TEXT | 사용자가 입력한 원본 URL | | ||
| | `short_key` | VARCHAR(10) | 생성된 고유한 짧은 키 (Index, Unique) | | ||
| | `created_at` | TIMESTAMP | 생성 일시 | | ||
| | `expires_at` | TIMESTAMP (Nullable) | 만료 일시 (선택 기능) | | ||
| | `click_count` | INT (Default: 0) | 클릭 수 (분석 기능을 위한 선택 컬럼) | | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
Tight short_key length; add constraints and indexes
Base62 of a 64‑bit id can exceed 10 chars. Define explicit constraints and uniqueness.
-| `short_key` | VARCHAR(10) | 생성된 고유한 짧은 키 (Index, Unique) |
+| `short_key` | VARCHAR(16) | 생성된 고유한 짧은 키 (UNIQUE INDEX) |Example DDL:
CREATE TABLE urls (
id BIGINT PRIMARY KEY AUTO_INCREMENT,
original_url TEXT NOT NULL,
short_key VARCHAR(16) NOT NULL,
created_at TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP(3),
expires_at TIMESTAMP(3) NULL,
click_count BIGINT NOT NULL DEFAULT 0,
CONSTRAINT uq_urls_short_key UNIQUE (short_key)
);🤖 Prompt for AI Agents
In gemini.md around lines 58 to 66, the schema uses VARCHAR(10) for short_key
and INT for click_count without explicit constraints or indexes; update the
table definition to use a larger short_key (e.g., VARCHAR(16)) and mark it NOT
NULL, change click_count to BIGINT with DEFAULT 0, add a UNIQUE constraint and
an index on short_key, and set TIMESTAMP precision (e.g., TIMESTAMP(3)) and NOT
NULL defaults for created_at so the DDL reflects these constraints and prevents
key collisions and overflow.
| spring: | ||
| datasource: | ||
| url: jdbc:mysql://db:3306/bitly_db?useSSL=false&serverTimezone=UTC&characterEncoding=UTF-8 | ||
| username: root | ||
| password: root | ||
| driver-class-name: com.mysql.cj.jdbc.Driver | ||
| jpa: | ||
| hibernate: | ||
| ddl-auto: update | ||
| show-sql: true | ||
| properties: | ||
| hibernate: | ||
| format_sql: true | ||
| dialect: org.hibernate.dialect.MySQLDialect No newline at end of file |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Externalize DB credentials and avoid hardcoding dialect.
Safer defaults with env fallbacks; rely on Boot to auto-detect dialect; add open-in-view=false.
spring:
datasource:
- url: jdbc:mysql://db:3306/bitly_db?useSSL=false&serverTimezone=UTC&characterEncoding=UTF-8
- username: root
- password: root
+ url: ${DB_URL:jdbc:mysql://db:3306/bitly_db?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&characterEncoding=UTF-8}
+ username: ${DB_USERNAME:root}
+ password: ${DB_PASSWORD:root}
driver-class-name: com.mysql.cj.jdbc.Driver
jpa:
hibernate:
ddl-auto: update
- show-sql: true
+ show-sql: true
+ open-in-view: false
properties:
hibernate:
format_sql: true
- dialect: org.hibernate.dialect.MySQLDialectAdvice:
- Create profile-specific files: application-dev.yml (show-sql=true, ddl-auto=update) and application-prod.yml (show-sql=false, ddl-auto=validate), sourcing credentials from env/secret managers. Want me to scaffold those?
📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| spring: | |
| datasource: | |
| url: jdbc:mysql://db:3306/bitly_db?useSSL=false&serverTimezone=UTC&characterEncoding=UTF-8 | |
| username: root | |
| password: root | |
| driver-class-name: com.mysql.cj.jdbc.Driver | |
| jpa: | |
| hibernate: | |
| ddl-auto: update | |
| show-sql: true | |
| properties: | |
| hibernate: | |
| format_sql: true | |
| dialect: org.hibernate.dialect.MySQLDialect | |
| spring: | |
| datasource: | |
| url: ${DB_URL:jdbc:mysql://db:3306/bitly_db?createDatabaseIfNotExist=true&useSSL=false&allowPublicKeyRetrieval=true&serverTimezone=UTC&characterEncoding=UTF-8} | |
| username: ${DB_USERNAME:root} | |
| password: ${DB_PASSWORD:root} | |
| driver-class-name: com.mysql.cj.jdbc.Driver | |
| jpa: | |
| hibernate: | |
| ddl-auto: update | |
| show-sql: true | |
| open-in-view: false | |
| properties: | |
| hibernate: | |
| format_sql: true |
🧰 Tools
🪛 YAMLlint (1.37.1)
[error] 14-14: no new line character at the end of file
(new-line-at-end-of-file)
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