tlias管理系统-spring事务管理&异常回滚robackfor&事务传播行为&部门日志记录案例的功能实现

tlias-web-management/src/main/java/com/inmind/controller/DeptController.java

@@ -38,7 +38,7 @@ public class DeptController {
     删除部门
      */
     @DeleteMapping("/{id}")
-    public Result delete(@PathVariable Integer id){
+    public Result delete(@PathVariable Integer id) throws Exception {
         log.info("删除部门：{}",id);
         deptService.delete(id);
         return Result.success();

tlias-web-management/src/main/java/com/inmind/mapper/DeptLogMapper.java

@@ -0,0 +1,13 @@
+package com.inmind.mapper;
+
+import com.inmind.pojo.DeptLog;
+import org.apache.ibatis.annotations.Insert;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface DeptLogMapper {
+
+    @Insert("insert into dept_log(create_time,description) values(#{createTime},#{description})")
+    void insert(DeptLog log);
+
+}

tlias-web-management/src/main/java/com/inmind/mapper/EmpMapper.java

@@ -1,6 +1,7 @@
 package com.inmind.mapper;
 
 import com.inmind.pojo.Emp;
+import org.apache.ibatis.annotations.Delete;
 import org.apache.ibatis.annotations.Insert;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Select;
@@ -43,4 +44,7 @@ public interface EmpMapper {
 
     @Select("select * from emp where username =#{username} and password = #{password} ")
     Emp getEmpByUserNameAndPassWord(Emp emp);
+
+    @Delete("delete from emp where dept_id = #{deptId}")
+    void deleteByDeptId(Integer deptId);
 }

tlias-web-management/src/main/java/com/inmind/pojo/DeptLog.java

@@ -0,0 +1,16 @@
+package com.inmind.pojo;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.time.LocalDateTime;
+
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class DeptLog {
+    private Integer id;
+    private LocalDateTime createTime;
+    private String description;
+}

tlias-web-management/src/main/java/com/inmind/service/DeptLogService.java

@@ -0,0 +1,9 @@
+package com.inmind.service;
+
+
+import com.inmind.pojo.DeptLog;
+
+public interface DeptLogService {
+
+    void insert(DeptLog deptLog);
+}

tlias-web-management/src/main/java/com/inmind/service/DeptService.java

@@ -1,6 +1,7 @@
 package com.inmind.service;
 
 import com.inmind.pojo.Dept;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 
@@ -9,7 +10,7 @@ public interface DeptService {
     List<Dept> list();
 
     //根据id删除部门
-    void delete(Integer id);
+    void delete(Integer id) throws Exception;
 
     //新增部门
     void add(Dept dept);

tlias-web-management/src/main/java/com/inmind/service/impl/DeptLogServiceImpl.java

@@ -0,0 +1,23 @@
+package com.inmind.service.impl;
+
+import com.inmind.mapper.DeptLogMapper;
+import com.inmind.pojo.DeptLog;
+import com.inmind.service.DeptLogService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+public class DeptLogServiceImpl implements DeptLogService {
+
+    @Autowired
+    private DeptLogMapper deptLogMapper;
+
+    //将部门日志传播行为设置为必须新建一个新的事务，它的操作，不受其他事务所影响
+    @Transactional(propagation = Propagation.REQUIRES_NEW)
+    @Override
+    public void insert(DeptLog deptLog) {
+        deptLogMapper.insert(deptLog);
+    }
+}

tlias-web-management/src/main/java/com/inmind/service/impl/DeptServiceImpl.java

@@ -1,10 +1,14 @@
 package com.inmind.service.impl;
 
 import com.inmind.mapper.DeptMapper;
+import com.inmind.mapper.EmpMapper;
 import com.inmind.pojo.Dept;
+import com.inmind.pojo.DeptLog;
+import com.inmind.service.DeptLogService;
 import com.inmind.service.DeptService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.time.LocalDateTime;
 import java.util.List;
@@ -15,6 +19,12 @@ public class DeptServiceImpl implements DeptService {
     @Autowired
     private DeptMapper deptMapper;
 
+    //注入一个员工Mapper，操作员工数据
+    @Autowired
+    private EmpMapper empMapper;
+    @Autowired
+    private DeptLogService deptLogService;
+
     //查询部门列表   @Override
     public List<Dept> list() {
         //调用deptMapper获取部门列表数据
@@ -23,9 +33,29 @@ public class DeptServiceImpl implements DeptService {
     }
 
     //根据id删除部门
+    @Transactional(rollbackFor = Exception.class)//让当前方法，处于事务管理下（在方法调用前，执行start transaction）
     @Override
-    public void delete(Integer id) {
-        deptMapper.delete(id);
+    public void delete(Integer id) throws Exception {
+        try {
+            //不仅删除对应部门数据
+            deptMapper.delete(id);
+            //进行一些业务逻辑代码,假设业务出现了异常
+//        int a = 1/0;
+            //抛出一个编译时异常
+            if (true) {
+                throw new Exception("出错了...");
+            }
+            //还要删除该部门下的员工数据(根据部门ID删除相关的员工)
+            empMapper.deleteByDeptId(id);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            //调用部门日志记录业务的插入功能，进行部门日志记录操作
+            DeptLog deptLog = new DeptLog();
+            deptLog.setCreateTime(LocalDateTime.now());
+            deptLog.setDescription("执行了解散部门的操作，此次解散的是"+ id+"号部门");
+            deptLogService.insert(deptLog);
+        }
     }
 
     //新增部门

tlias-web-management/src/main/resources/application.yml

@@ -27,3 +27,8 @@ aliyun:
     endpoint: https://oss-cn-hangzhou.aliyuncs.com
     bucketName: inmind-test1
     region: cn-hangzhou
+
+#spring事务管理日志
+logging:
+  level:
+    org.springframework.jdbc.support.JdbcTransactionManager: debug