未捕获的SyntaxError:意外的令牌e [英] Uncaught SyntaxError: Unexpected token e

问题描述

我新收到了Uncaught Syntax Error，唯一的增加就是从服务器向客户端发送/检索json数据.如何调查这是什么?以下是屏幕截图

I am getting Uncaught Syntax Error newly, the only addition is sending/retrieve json data from server to client. How to investigate what it is? Below is the screen shot

有时我在谷歌浏览器中遇到以下错误.

Sometimes i get the following error in google chrome.

下面有我最近更新到我的代码的详细信息，然后才收到此错误.

Below have the details which i lately updated to my code before we get this error.

// Post the topic in the post section
     function  updatePost(xhr, status,jsonData){
                    var args = $.parseJSON(jsonData);

从服务器日志打印出来的数据，然后再发送给客户端

10:20:15,101 INFO  [stdout] (http--127.0.0.1-8080-14)  Printing json data  {

10:20:15,102 INFO  [stdout] (http--127.0.0.1-8080-14)   "topic_username" : "srikanth marni",

10:20:15,102 INFO  [stdout] (http--127.0.0.1-8080-14)   "topic_lstUpdate" : "2012-09-06 10:20:15.025",

10:20:15,103 INFO  [stdout] (http--127.0.0.1-8080-14)   "topic_body" : "Whats up",

10:20:15,104 INFO  [stdout] (http--127.0.0.1-8080-14)   "isValid" : "true"

10:20:15,105 INFO  [stdout] (http--127.0.0.1-8080-14) }

创建Json对象的服务器代码

stringWriter = new StringWriter();
                // jfactory.createJsonGenerator(writer, JsonEncoding.UTF8);
                jGenerator = jfactory.createJsonGenerator(stringWriter);

                jGenerator.useDefaultPrettyPrinter();
                jGenerator.writeStartObject(); // {
                jGenerator.writeStringField("topic_username", loginUserName); // "title" : title
                jGenerator.writeStringField("topic_lstUpdate", topicBean.getTopicVO().getLastUpdatedTimestamp().toString());
                jGenerator.writeStringField("topic_body",              topicBean.getTopicVO().getBody());

                jGenerator.writeStringField("isValid", "true");
                jGenerator.writeEndObject(); // }
                jGenerator.close();
                //String jsonData = topicBean.getTopicVO().getBody();
                request.setAttribute("JSON_DATA", stringWriter.toString());
                System.out.println(" Printing json data  " +stringWriter.toString());

                RequestDispatcher rd = servletContext.getRequestDispatcher("/meteor");

控制台中显示Json Parser错误

Uncaught SyntaxError: Unexpected token e jquery.js.jsf:16
bF.extend.parseJSON jquery.js.jsf:16
updatePost circle_topic.js.jsf:216
request.onMessage publish_subscribe.js.jsf:56
_f jquery.atmosphere.js.jsf:1975
_invokeFunction jquery.atmosphere.js.jsf:1967
_invokeCallback jquery.atmosphere.js.jsf:2027
AtmosphereRequest.ajaxRequest.onreadystatechange jquery.atmosphere.js.jsf:1438

JSON数据

Logging message from publish_subsrcibe :{
  "topic_username" : "srikanth marni",
  "topic_lstUpdate" : "2012-09-06 11:52:59.966",
  "topic_body" : "testing",
  "isValid" : "true"
} 

推荐答案

这可能有用，也可能没有帮助，但是当外部系统调用的处理程序因语法错误而失败时，我也遇到了意外令牌E"错误.

This may or may not be helpful, but I also ran into the "Unexpected Token E" error when a handler for an external system call failed with a syntax error.

function handleSubsystemResult(text) {
   // Chrome reported "Unexpected token E" here
   var something = JSON.parse(text);  
   ...
}

function main() {
   ...
   callExternSubsystem( "externalSubsystemCode()", handleSubsystemResult );
}

外部子系统代码因语法错误而失败. Chrome仅在尝试对结果进行JSON.parse()时报告错误.如果在某种处理程序中调用了JSON.parse()，我将仔细检查谁调用了该处理程序.

The external subsystem code failed with a syntax error. Chrome reported the error only when trying to JSON.parse() the result. If the JSON.parse() is called in a handler of some sort, I'd examine who called that handler closely.

这篇关于未捕获的SyntaxError:意外的令牌e的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！