任务参数优化为texearea，方便任务参数赋值；

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">${I18n.jobinfo_field_executorparam}<font color="black">*</font></label>
-                        <div class="col-sm-10"><input type="text" class="form-control" name="executorParam" placeholder="${I18n.system_please_input}${I18n.jobinfo_field_executorparam}" maxlength="512" ></div>
+                        <div class="col-sm-10">
+                            <textarea class="textarea form-control" name="executorParam" placeholder="${I18n.system_please_input}${I18n.jobinfo_field_executorparam}" maxlength="512" style="height: 63px; line-height: 1.2;"></textarea>
+						</div>
                     </div>
 
                     <hr>
                     </div>
                     <div class="form-group">
                         <label for="firstname" class="col-sm-2 control-label">${I18n.jobinfo_field_executorparam}<font color="black">*</font></label>
-                        <div class="col-sm-10"><input type="text" class="form-control" name="executorParam" placeholder="${I18n.system_please_input}${I18n.jobinfo_field_executorparam}" maxlength="512" ></div>
+                        <div class="col-sm-10">
+                            <textarea class="textarea form-control" name="executorParam" placeholder="${I18n.system_please_input}${I18n.jobinfo_field_executorparam}" maxlength="512" style="height: 63px; line-height: 1.2;"></textarea>
+						</div>
                     </div>
 
 					<hr>

xxl-job-admin/src/main/webapp/static/js/jobinfo.index.1.js

         $("#updateModal .form input[name='executorFailRetryCount']").val( row.executorFailRetryCount );
 		$('#updateModal .form select[name=executorRouteStrategy] option[value='+ row.executorRouteStrategy +']').prop('selected', true);
 		$("#updateModal .form input[name='executorHandler']").val( row.executorHandler );
-		$("#updateModal .form input[name='executorParam']").val( row.executorParam );
+		$("#updateModal .form textarea[name='executorParam']").val( row.executorParam );
         $("#updateModal .form input[name='childJobId']").val( row.childJobId );
 		$('#updateModal .form select[name=executorBlockStrategy] option[value='+ row.executorBlockStrategy +']').prop('selected', true);
 		$('#updateModal .form select[name=glueType] option[value='+ row.glueType +']').prop('selected', true);