执行器注册线程优化，线程销毁时主动摘除注册机器；

doc/XXL-JOB官方文档.md

 - 4、执行器手动设置IP时将会绑定Host；
 - 5、项目主页搭建，提供中英文文档；
 - 6、执行器回调线程优化，线程销毁前批量回调队列中所有数据；
+- 7、执行器注册线程优化，线程销毁时主动摘除注册机器；
 
 ### TODO LIST
 - 1、任务权限管理：执行器为粒度分配权限，核心操作校验权限；

xxl-job-admin/src/main/java/com/xxl/job/admin/dao/XxlJobRegistryDao.java

                             @Param("registryKey") String registryKey,
                             @Param("registryValue") String registryValue);
 
+    public int registryDelete(@Param("registryGroup") String registGroup,
+                          @Param("registryKey") String registryKey,
+                          @Param("registryValue") String registryValue);
+
 }

xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/AdminBizImpl.java

         return ReturnT.SUCCESS;
     }
 
+    @Override
+    public ReturnT<String> registryRemove(RegistryParam registryParam) {
+        xxlJobRegistryDao.registryDelete(registryParam.getRegistGroup(), registryParam.getRegistryKey(), registryParam.getRegistryValue());
+        return ReturnT.SUCCESS;
+    }
+
 }

xxl-job-admin/src/main/resources/mybatis-mapper/XxlJobRegistryMapper.xml

         VALUES( #{registryGroup}  , #{registryKey} , #{registryValue}, NOW())
     </insert>
 
+	<delete id="registryDelete" >
+		DELETE FROM XXL_JOB_QRTZ_TRIGGER_REGISTRY
+		WHERE registry_group = #{registryGroup}
+			AND registry_key = #{registryKey}
+			AND registry_value = #{registryValue}
+	</delete>
+
 </mapper>

xxl-job-admin/src/test/java/com/xxl/job/dao/impl/AdminBizTest.java

         ReturnT<String> returnT = adminBiz.registry(registryParam);
         Assert.assertTrue(returnT.getCode() == ReturnT.SUCCESS_CODE);
 
+
+
+        // test executor registry remove
+        registryParam = new RegistryParam(RegistryConfig.RegistType.EXECUTOR.name(), "xxl-job-executor-example", "127.0.0.1:9999");
+        returnT = adminBiz.registryRemove(registryParam);
+        Assert.assertTrue(returnT.getCode() == ReturnT.SUCCESS_CODE);
+
     }
 
 }

xxl-job-core/src/main/java/com/xxl/job/core/biz/AdminBiz.java

      */
     public ReturnT<String> registry(RegistryParam registryParam);
 
+    /**
+     * registry remove
+     *
+     * @param registryParam
+     * @return
+     */
+    public ReturnT<String> registryRemove(RegistryParam registryParam);
+
 }

xxl-job-core/src/main/java/com/xxl/job/core/thread/ExecutorRegistryThread.java

         registryThread = new Thread(new Runnable() {
             @Override
             public void run() {
+
+                // registry
                 while (!toStop) {
                     try {
                         RegistryParam registryParam = new RegistryParam(RegistryConfig.RegistType.EXECUTOR.name(), appName, executorAddress);
                 }
 
                 // registry remove
+                try {
+                    RegistryParam registryParam = new RegistryParam(RegistryConfig.RegistType.EXECUTOR.name(), appName, executorAddress);
+                    for (AdminBiz adminBiz: XxlJobExecutor.getAdminBizList()) {
+                        try {
+                            ReturnT<String> registryResult = adminBiz.registryRemove(registryParam);
+                            if (registryResult!=null && ReturnT.SUCCESS_CODE == registryResult.getCode()) {
+                                registryResult = ReturnT.SUCCESS;
+                                logger.info(">>>>>>>>>>> xxl-job registry-remove success, registryParam:{}, registryResult:{}", new Object[]{registryParam, registryResult});
+                                break;
+                            } else {
+                                logger.info(">>>>>>>>>>> xxl-job registry-remove fail, registryParam:{}, registryResult:{}", new Object[]{registryParam, registryResult});
+                            }
+                        } catch (Exception e) {
+                            logger.info(">>>>>>>>>>> xxl-job registry-remove error, registryParam:{}", registryParam, e);
+                        }
 
+                    }
+                } catch (Exception e) {
+                    logger.error(e.getMessage(), e);
+                }
 
             }
         });