任务参数“IJobHandler.execute”入参改为“String params”，增强入参通用性。

doc/XXL-JOB官方文档.md

 
 "分片广播" 以执行器为维度进行分片，支持动态扩容执行器集群从而动态增加分片数量，协同进行业务处理；在进行大数据量业务操作时可显著提升任务处理能力和速度。
 
-"分片广播" 和普通任务开发流程一致，不同之处在于可以可以获取分片参数，获取分片参数对象的代码如下（可参考Sample示例执行器中的示例任务"ShardingJobHandler" ）：
+"分片广播" 和普通任务开发流程一致，不同之处在于可以可以获取分片参数，获取分片参数进行分片业务处理。
 
-    ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
+- Java语言任务获取分片参数方式：BEAN、GLUE模式(Java)
+```
+// 可参考Sample示例执行器中的示例任务"ShardingJobHandler"了解试用 
+ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
+```
+- 脚本语言任务获取分片参数方式：GLUE模式(Shell)、GLUE模式(Python)、GLUE模式(Nodejs)
+```
+// 脚本任务入参固定为三个，依次为：任务传参、分片序号、分片总数。以Shell模式任务为例，获取分片参数代码如下
+echo "分片序号 index = $2"
+echo "分片总数 total = $3"
+```  
     
-该分片参数对象拥有两个属性：
+分片参数属性说明：
 
     index：当前分片序号(从0开始)，执行器集群列表中当前执行器的序号；
     total：总分片数，执行器集群的总机器数量；
 - 18、任务列表界面，左侧菜单合并时样式错乱问题修复；
 - 19、执行器地址录入交互优化，地址长度扩展支持至512位，支持大规模执行器集群配置；
 - 20、项目依赖升级，如spring、jackson等；
-
+- 21、任务参数“IJobHandler.execute”入参改为“String params”，增强入参通用性。
+- 22、脚本任务Shell、Python和Nodejs等支持获取分片参数；
 
 ### 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；
 - 11、任务日志，记录发起调度的机器信息；
 - 12、任务告警逻辑调整：任务调度，以及任务回调失败时，均推送监控队列。后期考虑通过任务Log字段控制告警状态；
 - 13、执行器Log清理功能：调度中心Log删除时同步删除执行器中的Log文件；
-- 14、脚本任务 Shell、Python和Nodejs，如何友好获取分片参数；
-- 15、Bean模式任务，JobHandler自动从执行器中查询展示为下拉框，选择后自动填充任务名称等属性；
-- 16、任务告警邮件优化，调整为表格形式；
-- 17、执行器回调地址格式兼容，支持非"/"结尾路径配置；
+- 14、Bean模式任务，JobHandler自动从执行器中查询展示为下拉框，选择后自动填充任务名称等属性；
+- 15、任务告警邮件优化，调整为表格形式；
+- 16、执行器回调地址格式兼容，支持非"/"结尾路径配置；
+- 17、任务事件触发API服务优化，支持调用时动态传参；
 
 
 ## 七、其他

doc/db/tables_xxl_job.sql

   `alarm_email` varchar(255) DEFAULT NULL COMMENT '报警邮件',
   `executor_route_strategy` varchar(50) DEFAULT NULL COMMENT '执行器路由策略',
   `executor_handler` varchar(255) DEFAULT NULL COMMENT '执行器任务handler',
-  `executor_param` varchar(255) DEFAULT NULL COMMENT '执行器任务参数',
+  `executor_param` varchar(512) DEFAULT NULL COMMENT '执行器任务参数',
   `executor_block_strategy` varchar(50) DEFAULT NULL COMMENT '阻塞处理策略',
   `executor_fail_strategy` varchar(50) DEFAULT NULL COMMENT '失败处理策略',
   `glue_type` varchar(50) NOT NULL COMMENT 'GLUE类型',
   `glue_type` varchar(50) DEFAULT NULL COMMENT 'GLUE类型',
   `executor_address` varchar(255) DEFAULT NULL COMMENT '执行器地址，本次执行的地址',
   `executor_handler` varchar(255) DEFAULT NULL COMMENT '执行器任务handler',
-  `executor_param` varchar(255) DEFAULT NULL COMMENT 'executor_param',
+  `executor_param` varchar(512) DEFAULT NULL COMMENT '执行器任务参数',
   `trigger_time` datetime DEFAULT NULL COMMENT '调度-时间',
   `trigger_code` varchar(255) NOT NULL DEFAULT '0' COMMENT '调度-结果',
   `trigger_msg` varchar(2048) DEFAULT NULL COMMENT '调度-日志',

xxl-job-admin/src/main/webapp/WEB-INF/template/jobinfo/jobinfo.index.ftl

                     </div>
                     <div class="form-group">
                         <label for="firstname" class="col-sm-2 control-label">执行参数<font color="black">*</font></label>
-                        <div class="col-sm-4"><input type="text" class="form-control" name="executorParam" placeholder="请输入“执行参数”" maxlength="100" ></div>
+                        <div class="col-sm-4"><input type="text" class="form-control" name="executorParam" placeholder="请输入“执行参数”" maxlength="512" ></div>
                         <label for="lastname" class="col-sm-2 control-label">子任务Key<font color="black">*</font></label>
                         <div class="col-sm-4"><input type="text" class="form-control" name="childJobKey" placeholder="请输入子任务的任务Key,如存在多个逗号分隔" maxlength="100" ></div>
                     </div>
 public class DemoGlueJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 		XxlJobLogger.log("XXL-JOB, Hello World.");
 		return ReturnT.SUCCESS;
 	}
                     </div>
                     <div class="form-group">
                         <label for="firstname" class="col-sm-2 control-label">执行参数<font color="black">*</font></label>
-                        <div class="col-sm-4"><input type="text" class="form-control" name="executorParam" placeholder="请输入“执行参数”" maxlength="100" ></div>
+                        <div class="col-sm-4"><input type="text" class="form-control" name="executorParam" placeholder="请输入“执行参数”" maxlength="512" ></div>
                         <label for="lastname" class="col-sm-2 control-label">子任务Key<font color="black">*</font></label>
                         <div class="col-sm-4"><input type="text" class="form-control" name="childJobKey" placeholder="请输入子任务的任务Key,如存在多个逗号分隔" maxlength="100" ></div>
                     </div>

xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java

 	/**
 	 * execute handler
 	 *
-	 * @param params
+	 * @param param
 	 * @return
 	 * @throws Exception
 	 */
-	public abstract ReturnT<String> execute(String... params) throws Exception;
+	public abstract ReturnT<String> execute(String param) throws Exception;
 
 
 	/**

xxl-job-core/src/main/java/com/xxl/job/core/handler/impl/GlueJobHandler.java

 	}
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 		XxlJobLogger.log("----------- glue.version:"+ glueUpdatetime +" -----------");
-		return jobHandler.execute(params);
+		return jobHandler.execute(param);
 	}
 
 }

xxl-job-core/src/main/java/com/xxl/job/core/handler/impl/ScriptJobHandler.java

 import com.xxl.job.core.log.XxlJobFileAppender;
 import com.xxl.job.core.log.XxlJobLogger;
 import com.xxl.job.core.util.ScriptUtil;
+import com.xxl.job.core.util.ShardingUtil;
 
 /**
  * Created by xuxueli on 17/4/27.
     }
 
     @Override
-    public ReturnT<String> execute(String... params) throws Exception {
+    public ReturnT<String> execute(String param) throws Exception {
 
         if (!glueType.isScript()) {
             return new ReturnT<String>(IJobHandler.FAIL.getCode(), "glueType["+ glueType +"] invalid.");
         // log file
         String logFileName = XxlJobFileAppender.contextHolder.get();
 
+        // script params：0=param、1=分片序号、2=分片总数
+        ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
+        String[] scriptParams = new String[3];
+        scriptParams[0] = param;
+        scriptParams[1] = String.valueOf(shardingVO.getIndex());
+        scriptParams[2] = String.valueOf(shardingVO.getTotal());
+
         // invoke
         XxlJobLogger.log("----------- script file:"+ scriptFileName +" -----------");
-        int exitValue = ScriptUtil.execToFile(cmd, scriptFileName, logFileName, params);
+        int exitValue = ScriptUtil.execToFile(cmd, scriptFileName, logFileName, scriptParams);
         ReturnT<String> result = (exitValue==0)?IJobHandler.SUCCESS:new ReturnT<String>(IJobHandler.FAIL.getCode(), "script exit value("+exitValue+") is failed");
         return result;
     }

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

 					idleTimes = 0;
 					triggerLogIdSet.remove(triggerParam.getLogId());
 
-					// parse param
-					String[] handlerParams = (triggerParam.getExecutorParams()!=null && triggerParam.getExecutorParams().trim().length()>0)
-							? (String[])(Arrays.asList(triggerParam.getExecutorParams().split(",")).toArray()) : null;
-
-
 					// log filename, like "logPath/yyyy-MM-dd/9999.log"
 					String logFileName = XxlJobFileAppender.makeLogFileName(new Date(triggerParam.getLogDateTim()), triggerParam.getLogId());
 					XxlJobFileAppender.contextHolder.set(logFileName);
 					ShardingUtil.setShardingVo(new ShardingUtil.ShardingVO(triggerParam.getBroadcastIndex(), triggerParam.getBroadcastTotal()));
 
 					// execute
-					XxlJobLogger.log("<br>----------- xxl-job job execute start -----------<br>----------- Params:" + Arrays.toString(handlerParams));
-					executeResult = handler.execute(handlerParams);
+					XxlJobLogger.log("<br>----------- xxl-job job execute start -----------<br>----------- Param:" + triggerParam.getExecutorParams());
+					executeResult = handler.execute(triggerParam.getExecutorParams());
 					if (executeResult == null) {
 						executeResult = IJobHandler.FAIL;
 					}

xxl-job-executor-samples/xxl-job-executor-sample-jfinal/src/main/java/com/xuxueli/executor/sample/jfinal/jobhandler/DemoJobHandler.java

 public class DemoJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 		XxlJobLogger.log("XXL-JOB, Hello World.");
 
 		for (int i = 0; i < 5; i++) {

xxl-job-executor-samples/xxl-job-executor-sample-jfinal/src/main/java/com/xuxueli/executor/sample/jfinal/jobhandler/ShardingJobHandler.java

 public class ShardingJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 
 		// 分片参数
 		ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();

xxl-job-executor-samples/xxl-job-executor-sample-spring/src/main/java/com/xxl/job/executor/service/jobhandler/DemoJobHandler.java

 public class DemoJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 		XxlJobLogger.log("XXL-JOB, Hello World.");
 		
 		for (int i = 0; i < 5; i++) {

xxl-job-executor-samples/xxl-job-executor-sample-spring/src/main/java/com/xxl/job/executor/service/jobhandler/ShardingJobHandler.java

 public class ShardingJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 
 		// 分片参数
 		ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();

xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/service/jobhandler/DemoJobHandler.java

 public class DemoJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 		XxlJobLogger.log("XXL-JOB, Hello World.");
 
 		for (int i = 0; i < 5; i++) {

xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/service/jobhandler/ShardingJobHandler.java

 public class ShardingJobHandler extends IJobHandler {
 
 	@Override
-	public ReturnT<String> execute(String... params) throws Exception {
+	public ReturnT<String> execute(String param) throws Exception {
 
 		// 分片参数
 		ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();