级联删除，删除路由键时，级联删除数据库中绑定关系，MQ中的绑定关系

@@ -8,7 +8,9 @@ import com.sunyo.wlpt.message.bus.service.utils.IdUtils;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
+import java.io.IOException;
 import java.util.List;
+import java.util.concurrent.TimeoutException;
 
 import static com.sunyo.wlpt.message.bus.service.common.Constant.EXIST_ROUTINGKEY_INFO;
 
@@ -39,7 +41,8 @@ public class RoutingKeyController {
             @RequestParam(value = "routingKeyName", required = false) String routingKeyName,
             @RequestParam(value = "exchangeId", required = false) String exchangeId,
             @RequestParam(value = "pageNum", defaultValue = "1") Integer pageNum,
-            @RequestParam(value = "pageSize", defaultValue = "10") Integer pageSize) {
+            @RequestParam(value = "pageSize", defaultValue = "10") Integer pageSize)
+    {
         // 获取查询参数
         RoutingKey routingKey = RoutingKey.builder().routingKeyName(routingKeyName).exchangeId(exchangeId).build();
         // 分页查询
@@ -56,8 +59,8 @@ public class RoutingKeyController {
      * @return {@link ResultJson}
      */
     @DeleteMapping("/delete")
-    public ResultJson deleteRoutingKey(@RequestBody RoutingKey routingKey) {
-
+    public ResultJson deleteRoutingKey(@RequestBody RoutingKey routingKey) throws IOException, TimeoutException
+    {
         return routingKeyService.deleteByPrimaryKey(routingKey.getId()) > 0
                 ? new ResultJson<>("200", "删除路由键，成功")
                 : new ResultJson<>("500", "删除路由键，失败");
@@ -70,8 +73,8 @@ public class RoutingKeyController {
      * @return {@link ResultJson}
      */
     @GetMapping("/batchRemove")
-    public ResultJson batchRemoveRoutingKey(String ids) {
-
+    public ResultJson batchRemoveRoutingKey(String ids) throws IOException, TimeoutException
+    {
         return routingKeyService.deleteByPrimaryKey(ids) > 0
                 ? new ResultJson<>("200", "删除路由键，成功")
                 : new ResultJson<>("500", "删除路由键，失败");
@@ -84,7 +87,8 @@ public class RoutingKeyController {
      * @return {@link ResultJson}
      */
     @PutMapping("/update")
-    public ResultJson updateRoutingKey(@RequestBody RoutingKey routingKey) {
+    public ResultJson updateRoutingKey(@RequestBody RoutingKey routingKey)
+    {
 
         //先验证，修改好的核心信息（路由键名称）是否已存在
         String message = validateRoutingKey(routingKey);
@@ -102,7 +106,8 @@ public class RoutingKeyController {
      * @return {@link ResultJson}
      */
     @PostMapping("/insert")
-    public ResultJson insertRoutingKey(@RequestBody RoutingKey routingKey) {
+    public ResultJson insertRoutingKey(@RequestBody RoutingKey routingKey)
+    {
 
         //先验证，增加的服务器的核心信息（ip和port，同时存在）是否已存在
         String message = validateRoutingKey(routingKey);
@@ -122,7 +127,8 @@ public class RoutingKeyController {
      * @param routingKey {@link RoutingKey}
      * @return 通过，无返回消息
      */
-    private String validateRoutingKey(RoutingKey routingKey) {
+    private String validateRoutingKey(RoutingKey routingKey)
+    {
         if ("".equals(routingKey.getRoutingKeyName()) || routingKey.getRoutingKeyName() == null) {
             return "该路由键信息中，没有路由键名称";
         }

@@ -2,6 +2,7 @@ package com.sunyo.wlpt.message.bus.service.mapper;
 
 import com.sunyo.wlpt.message.bus.service.domain.RoutingKey;
 import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
 
@@ -86,6 +87,14 @@ public interface RoutingKeyMapper {
     List<RoutingKey> getRoutingKeyList(RoutingKey routingKey);
 
     /**
+     * 根据exchangeID查询路由键
+     *
+     * @param exchangeId 交换机id
+     * @return
+     */
+    List<RoutingKey> selectByExchangeId(@Param("exchangeId") String exchangeId);
+
+    /**
      * 检验路由键是否存在，根据交换机id和路由键名称
      *
      * @param routingKey 路由键

@@ -39,6 +39,14 @@ public interface UserMessageBindingMapper {
     int deleteByQueueId(String queueId);
 
     /**
+     * 根据路由键id删除配置关系
+     *
+     * @param routingKeyId 路由键id
+     * @return 删除成功
+     */
+    int deleteByRoutingKeyId(String routingKeyId);
+
+    /**
      * insert record to table
      *
      * @param record the record
@@ -63,6 +71,14 @@ public interface UserMessageBindingMapper {
     UserMessageBinding selectByPrimaryKey(String id);
 
     /**
+     * 根据路由键id
+     *
+     * @param routingKeyId 路由键id
+     * @return
+     */
+    List<UserMessageBinding> selectByRoutingKeyId(String routingKeyId);
+
+    /**
      * update record selective
      *
      * @param record the updated record

@@ -2,8 +2,11 @@ package com.sunyo.wlpt.message.bus.service.service;
 
 import com.github.pagehelper.PageInfo;
 import com.sunyo.wlpt.message.bus.service.domain.RoutingKey;
+import org.apache.ibatis.annotations.Param;
 
+import java.io.IOException;
 import java.util.List;
+import java.util.concurrent.TimeoutException;
 
 /**
  * @author 子诚
@@ -18,7 +21,7 @@ public interface RoutingKeyService {
      * @param id primaryKey
      * @return deleteCount
      */
-    int deleteByPrimaryKey(String id);
+    int deleteByPrimaryKey(String id) throws IOException, TimeoutException;
 
     /**
      * 根据交换机id，删除路由键信息
@@ -53,6 +56,14 @@ public interface RoutingKeyService {
     RoutingKey selectByPrimaryKey(String id);
 
     /**
+     * 根据exchangeID查询路由键
+     *
+     * @param exchangeId 交换机id
+     * @return
+     */
+    List<RoutingKey> selectByExchangeId(@Param("exchangeId") String exchangeId);
+
+    /**
      * 更新，选择性，根据主键
      *
      * @param record the updated record

@@ -5,6 +5,7 @@ import com.sunyo.wlpt.message.bus.service.domain.UserMessageBinding;
 import com.sunyo.wlpt.message.bus.service.domain.XmlData;
 
 import java.io.IOException;
+import java.util.List;
 import java.util.concurrent.TimeoutException;
 
 /**
@@ -30,6 +31,14 @@ public interface UserMessageBindingService {
     int deleteByExchangeId(String exchangeId);
 
     /**
+     * 根据路由键id删除配置关系
+     *
+     * @param routingKeyId 路由键id
+     * @return 删除成功
+     */
+    int deleteByRoutingKeyId(String routingKeyId);
+
+    /**
      * 根据队列Id，删除绑定关系
      *
      * @param queueId 队列id
@@ -94,6 +103,14 @@ public interface UserMessageBindingService {
      * @return true or false
      */
     Boolean validateXmlBinding(XmlData xmlData);
+
+    /**
+     * 根据路由键id
+     *
+     * @param routingKeyId 路由键id
+     * @return
+     */
+    List<UserMessageBinding> selectByRoutingKeyId(String routingKeyId);
 }
 
 

 package com.sunyo.wlpt.message.bus.service.service.impl;
 
-import com.sunyo.wlpt.message.bus.service.domain.BusExchange;
-import com.sunyo.wlpt.message.bus.service.domain.BusQueue;
-import com.sunyo.wlpt.message.bus.service.domain.XmlData;
+import com.sunyo.wlpt.message.bus.service.domain.*;
+import com.sunyo.wlpt.message.bus.service.rabbit.utils.RabbitUtils;
 import com.sunyo.wlpt.message.bus.service.service.MessageNoteService;
 import com.sunyo.wlpt.message.bus.service.service.RoutingKeyService;
 import com.sunyo.wlpt.message.bus.service.service.UserMessageBindingService;
 import org.springframework.scheduling.annotation.Async;
-import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.TimeoutException;
 
 /**
  * @author 子诚
@@ -17,10 +21,13 @@ import javax.annotation.Resource;
  * 注意点：异步任务需要单独放在一个类中
  * 时间：2020/7/30 15:59
  */
-@Component
+@Service
 public class AsyncTaskService {
 
     @Resource
+    private RabbitUtils rabbitUtils;
+
+    @Resource
     private MessageNoteService messageNoteService;
 
     @Resource
@@ -53,15 +60,42 @@ public class AsyncTaskService {
 
     /**
      * 当删除交换机的时候，
+     * <p>
      * 同时，删除对应的路由键，删除包含交换机的绑定关系
+     * <p>
+     * 同时，删除包含该路由键的绑定关系
      */
     @Async
+    @Transactional(rollbackFor = Exception.class, propagation = Propagation.REQUIRED)
     void exchangeCascadeDelete(BusExchange busExchange)
     {
+        String exchangeId = busExchange.getId();
+        List<RoutingKey> routingKeyList = routingKeyService.selectByExchangeId(exchangeId);
         // 删除相关路由键
-        routingKeyService.deleteByExchangeId(busExchange.getId());
-        // 删除相关配置关系
-        userMessageBindingService.deleteByExchangeId(busExchange.getId());
+        routingKeyService.deleteByExchangeId(exchangeId);
+        // 删除交换机相关配置关系
+        userMessageBindingService.deleteByExchangeId(exchangeId);
+        // 删除路由键相关配置关系
+        for (int i = 0; i < routingKeyList.size(); i++) {
+            userMessageBindingService.deleteByRoutingKeyId(routingKeyList.get(0).getId());
+        }
+    }
+
+    /**
+     * 当删除路由键的时候，删除包含该路由键的配置关系
+     */
+    @Async
+    void routingKeyCascadeDelete(RoutingKey routingKey) throws IOException, TimeoutException
+    {
+        String routingKeyId = routingKey.getId();
+        // 根据路由键id查询出所有的包含该路由键的配置关系
+        List<UserMessageBinding> bindings = userMessageBindingService.selectByRoutingKeyId(routingKeyId);
+        for (UserMessageBinding userMessageBinding : bindings) {
+            // 解除MQ服务器上的配置关系
+            rabbitUtils.toRemoveBinding(userMessageBinding);
+        }
+        // 删除数据库中的包含该路由键相关配置关系
+        userMessageBindingService.deleteByRoutingKeyId(routingKey.getId());
     }
 
     /**

@@ -7,6 +7,7 @@ import com.sunyo.wlpt.message.bus.service.mapper.BusQueueMapper;
 import com.sunyo.wlpt.message.bus.service.rabbit.utils.RabbitUtils;
 import com.sunyo.wlpt.message.bus.service.service.BusQueueService;
 import io.netty.util.internal.StringUtil;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
@@ -31,6 +32,7 @@ public class BusQueueServiceImpl implements BusQueueService {
     @Resource
     private RabbitUtils rabbitUtils;
 
+    @Lazy
     @Resource
     private AsyncTaskService asyncTaskService;
 

@@ -5,13 +5,16 @@ import com.github.pagehelper.PageInfo;
 import com.sunyo.wlpt.message.bus.service.domain.RoutingKey;
 import com.sunyo.wlpt.message.bus.service.mapper.RoutingKeyMapper;
 import com.sunyo.wlpt.message.bus.service.service.RoutingKeyService;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Propagation;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.TimeoutException;
 
 /**
  * @author 子诚
@@ -21,12 +24,16 @@ import java.util.List;
 @Service
 public class RoutingKeyServiceImpl implements RoutingKeyService {
 
+    @Lazy
+    @Resource
+    private AsyncTaskService asyncTaskService;
+
     @Resource
     private RoutingKeyMapper routingKeyMapper;
 
     @Override
     @Transactional(rollbackFor = Exception.class, propagation = Propagation.REQUIRED)
-    public int deleteByPrimaryKey(String id)
+    public int deleteByPrimaryKey(String id) throws IOException, TimeoutException
     {
         // 判断删除的个数，需被删除的个数是否一致
         int index = 0;
@@ -35,6 +42,9 @@ public class RoutingKeyServiceImpl implements RoutingKeyService {
         if (id.contains(splitItem)) {
             String[] split = id.split(splitItem);
             for (int i = 0; i < split.length; i++) {
+                RoutingKey routingKey = routingKeyMapper.selectByPrimaryKey(split[i]);
+                // 异步，级联删除包含该路由键的配置关系
+                asyncTaskService.routingKeyCascadeDelete(routingKey);
                 int num = routingKeyMapper.deleteByPrimaryKey(split[i]);
                 if (num > 0) {
                     index = index + num;
@@ -46,6 +56,9 @@ public class RoutingKeyServiceImpl implements RoutingKeyService {
                 return 0;
             }
         } else {
+            RoutingKey routingKey = routingKeyMapper.selectByPrimaryKey(id);
+            // 异步，级联删除包含该路由键的配置关系
+            asyncTaskService.routingKeyCascadeDelete(routingKey);
             return routingKeyMapper.deleteByPrimaryKey(id);
         }
     }
@@ -75,6 +88,12 @@ public class RoutingKeyServiceImpl implements RoutingKeyService {
     }
 
     @Override
+    public List<RoutingKey> selectByExchangeId(String exchangeId)
+    {
+        return routingKeyMapper.selectByExchangeId(exchangeId);
+    }
+
+    @Override
     public int updateByPrimaryKeySelective(RoutingKey record)
     {
         return routingKeyMapper.updateByPrimaryKeySelective(record);

@@ -435,6 +435,18 @@ public class UserMessageBindingServiceImpl implements UserMessageBindingService
     {
         return userMessageBindingMapper.deleteByQueueId(queueId);
     }
+
+    @Override
+    public int deleteByRoutingKeyId(String routingKeyId)
+    {
+        return userMessageBindingMapper.deleteByRoutingKeyId(routingKeyId);
+    }
+
+    @Override
+    public List<UserMessageBinding> selectByRoutingKeyId(String routingKeyId)
+    {
+        return userMessageBindingMapper.selectByRoutingKeyId(routingKeyId);
+    }
 }
 
 

@@ -85,6 +85,18 @@
         </where>
     </select>
 
+    <select id="selectByExchangeId" parameterType="java.lang.String" resultMap="BaseResultMap">
+        select
+        <include refid="Base_Column_List"/>
+        from routing_key
+        <where>
+            <!-- 所属交换机ID -->
+            <if test="exchangeId != null and exchangeId != ''">
+                exchange_id = #{exchangeId,jdbcType=VARCHAR}
+            </if>
+        </where>
+    </select>
+
     <select id="selectRoutingKeyExist" parameterType="com.sunyo.wlpt.message.bus.service.domain.RoutingKey"
             resultMap="BaseResultMap">
         select
@@ -97,7 +109,7 @@
             </if>
             <!-- 路由键名称 -->
             <if test="routingKeyName != null and routingKeyName != ''">
-              and  routing_key_name = #{routingKeyName,jdbcType=VARCHAR}
+                and  routing_key_name = #{routingKeyName,jdbcType=VARCHAR}
             </if>
         </where>
     </select>

@@ -34,6 +34,14 @@
       where id = #{id,jdbcType=VARCHAR}
   </select>
 
+  <select id="selectByRoutingKeyId" parameterType="java.lang.String" resultMap="BaseResultMap">
+      <!--@mbg.generated-->
+      select
+      <include refid="Base_Column_List"/>
+      from user_message_binding
+      where routing_key_id = #{routingKeyId,jdbcType=VARCHAR}
+  </select>
+
   <delete id="deleteByPrimaryKey" parameterType="java.lang.String">
       <!--@mbg.generated-->
       delete
@@ -56,6 +64,15 @@
         from user_message_binding
         where queue_id = #{queueId,jdbcType=VARCHAR}
     </delete>
+
+    <!--  根据路由键id，删除配置关系-->
+    <delete id="deleteByRoutingKeyId" parameterType="java.lang.String">
+        <!--@mbg.generated-->
+        delete
+        from user_message_binding
+        where routing_key_id = #{routingKeyId,jdbcType=VARCHAR}
+    </delete>
+
   <insert id="insert" parameterType="com.sunyo.wlpt.message.bus.service.domain.UserMessageBinding">
       <!--@mbg.generated-->
       insert into user_message_binding (id, user_id, username,