feat(core): add spotless plugin, remove unused imports

CONTRIBUTING-zh.md

@@ -57,6 +57,10 @@ Spring AI Alibaba 作为 Spring AI 的实现之一，在代码规范方面直接
 
 为了减少一些不必要的代码风格问题，Spring AI Alibaba 提供了本地 Checkstyle 检查功能。可以在项目根目录下执行 `mvn checkstyle:check` 命令来检查代码风格是否符合规范。
 
+### 删除未使用的导入
+
+为了确保代码的整洁，请删除 Java 文件中未使用的导入。可以通过执行 `mvn spotless:apply` 命令来自动删除未使用的导入。
+
 ### 提交最新代码
 
 在编码完成之后，需要基于 pr 规范`[lint-pr-title.yml](.github/workflows/lint-pr-title.yml)`对提交信息进行 format & check，确保提交信息符合规范。

CONTRIBUTING.md

@@ -63,6 +63,10 @@ After completing development in your local BOE environment, it's strongly recomm
 
 To reduce unnecessary code style issues, Spring AI Alibaba provides a local Checkstyle check feature. You can run `mvn checkstyle:check` in the project's root directory to verify if your code style complies with the standards.
 
+### Remove Unused Imports
+
+To ensure code cleanliness, please remove any unused imports in your Java files. You can do this by using the `mvn spotless:apply` command, which will automatically remove unused imports from your code.
+
 ### Commit the Latest Code
 
 After completing your coding, you need to format and verify your commit messages according to the PR specification in `[lint-pr-title.yml](.github/workflows/lint-pr-title.yml)` to ensure they comply with the guidelines.

pom.xml

@@ -263,6 +263,7 @@
         <maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError>
         <maven-checkstyle-plugin.failOnViolation>true</maven-checkstyle-plugin.failOnViolation>
         <puppycrawl-tools-checkstyle.version>9.3</puppycrawl-tools-checkstyle.version>
+        <spotless.version>2.29.0</spotless.version>
     </properties>
 
     <dependencyManagement>
@@ -344,6 +345,25 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.29.0</version>
+                <configuration>
+                    <java>
+                        <removeUnusedImports></removeUnusedImports>
+                    </java>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>spotless-apply</id>
+                        <goals>
+                            <goal>apply</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>

spring-ai-alibaba-bom/pom.xml

@@ -682,6 +682,25 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.29.0</version>
+                <configuration>
+                    <java>
+                        <removeUnusedImports></removeUnusedImports>
+                    </java>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>spotless-apply</id>
+                        <goals>
+                            <goal>apply</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-deploy-plugin</artifactId>

spring-ai-alibaba-deepresearch/pom.xml

@@ -244,6 +244,25 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.29.0</version>
+                <configuration>
+                    <java>
+                        <removeUnusedImports></removeUnusedImports>
+                    </java>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>spotless-apply</id>
+                        <goals>
+                            <goal>apply</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 

spring-ai-alibaba-jmanus/pom.xml

@@ -318,6 +318,25 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>com.diffplug.spotless</groupId>
+                <artifactId>spotless-maven-plugin</artifactId>
+                <version>2.29.0</version>
+                <configuration>
+                    <java>
+                        <removeUnusedImports></removeUnusedImports>
+                    </java>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>spotless-apply</id>
+                        <goals>
+                            <goal>apply</goal>
+                        </goals>
+                        <phase>process-sources</phase>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 

tools/make/java.mk

@@ -35,6 +35,11 @@ format-check: ## Format Check the code
 	@$(LOG_TARGET)
 	mvn spring-javaformat:validate
 
+.PHONY: spotless-apply
+spotless-apply: ## Run spotless and apply changes
+	@$(LOG_TARGET)
+	mvn spotless:apply
+
 .PHONY: checkstyle-check
 checkstyle-check: ## Checkstyle Check the code and output to target/checkstyle-report.xml
 	@$(LOG_TARGET)