tlias管理系统--事务管理-事务进阶-事务传播行为-propagation属性

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/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/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;
+
+    //设置当前部门日志插入操作为，必须是一个单独的新事务，不受其他事务的影响
+    @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

@@ -1,8 +1,11 @@
 package com.inmind.service.impl;
 
+import com.inmind.mapper.DeptLogMapper;
 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.Component;
@@ -21,6 +24,9 @@ public class DeptServiceImpl implements DeptService {
     @Autowired
     private EmpMapper empMapper;
 
+    @Autowired
+    private DeptLogService deptLogService;
+
     /**
      * 查询所有部门信息
      * @return
@@ -39,17 +45,23 @@ public class DeptServiceImpl implements DeptService {
     @Transactional(rollbackFor = Exception.class)//将当前的删除功能交给事务管理，达到全成功或全失败的业务功能
     @Override
     public void delete(Integer id) throws Exception {
-        deptMapper.delete(id);
-
-        //todo 可能存在大量的业务处理代码，而代码可能会出现业务异常
+        try {
+            deptMapper.delete(id);
 //        int a = 1/0;
-
-        if (true) {
-            throw new Exception();//模拟抛出一个编译时异常
+            if (true) {
+                throw new Exception();//模拟抛出一个编译时异常
+            }
+            //当删除部门时，也要把相关的员工删除掉
+            empMapper.deleteByDeptId(id);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        } finally {
+            //无论是否出现异常，一定会执行finally中的代码
+            DeptLog deptLog = new DeptLog();
+            deptLog.setCreateTime(LocalDateTime.now());
+            deptLog.setDescription("执行了部门删除操作，删除的部门号是："+id);
+            deptLogService.insert(deptLog);
         }
-
-        //当删除部门时，也要把相关的员工删除掉
-        empMapper.deleteByDeptId(id);
     }
 
     @Override