$ .getJSON失败，解析错误

我试图使用jQuery.getJSON从我没有自己的域中获取数据。我已经在过去工作了，但这次它一直在失败。我在浏览器中得到响应，但Chrome说SyntaxError: Unexpected token :和Firefox说invalid label。

这有几个特点。假设代码是MY_JSON_RESPONSE（不是变量，只是一个“别名”）。这些都返回预期的对象：

a = MY_JSON_RESPONSE; 
eval(MY_JSON_RESPONSE);

这是请求我做：

$.getJSON("http://xxx.yyy.zzz/abc?callback=?", 
    function(data) { 
    console.log(data); 
    });

编辑：下面是匿名响应数据：

{"aaaaaaa":"aaaaaaaa aaaaa aaa aaaaaaaaaa","aaaaa":"aaaaaaaa aaaaa aaa","aa":"0000000","aaaa_aaaaaaa":"aaa aaaaa","aaaaaaa_aaaaaaa":"aa aaa aaaaaaaa aa aaaaaaaa aaa aaaaaaa aaaaaa aaa aaa aaaaaaaa aa aaaaaaaa aa aaaaaa aaaaa aaa aaaaa. aaa aaaaaaaa aaaaa aaa aaaaaaaaaa aaaaaaaa aaaaa aaaaa aaaaaaaa aaaaaaaaaaa aaaaaaaaaa aa aaaa 00 aaaaaaa aaaaaaaaa aa aaa aaaaaaaa aaaaa aaa, aa aaaaaaaaaaa aaaaaaaaaaaaa aaaaaaaa aaaaaaaaaa aaaaaaaaaa aaaaaa, aaaaaaaaa aaa aaaaaaa aaaaaaaa. 00% aa aaaaaaa aaaaaa aaaaa aaaaa aaaaaaaaaaaaa aaaaa aaaaaaaaaaaaa.","aaaaaaaaa":[{"aaaaaa":"aaaaa aaa aaaaaa aaaaaaaa","aaaaaaa":"aaaaaaaa aa aaaaaa aaa aaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"},{"aaaaaa":"aaa","aaaaaaa":"aaaaaaaa aaaa aa &aaaa;aaaaa aaa aaaaaaaaaa aaaaaaaaa&aaaa; - aaa aaa aa, aaaaa aaa a aaaa aaaaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a000.00"},{"aaaaaa":"aaaaa","aaaaaaa":"aaaa aaaa aaaa!!!!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"},{"aaaaaa":"aaa\/aaa","aaaaaaa":"aaaaaaa aaaaa aaaa aaa aaaa aaaaa aaa aaaaa aaa aaaaaaa aaaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aa (aaaaaaa &aaa; aaaaaaaaa)","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a0000.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaaaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"},{"aaaaaa":"aaaaaa aaaaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"","aaaa_aaa":""},{"aaaaaa":"aaaaaa aaaaaaaa","aaaaaaa":"aaaa aaaaaaa aaaaaaaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaa aaaaaaaaaaa","aaaaaaa":"aaaaa aaaaaa&#00;a aaa, aaa! aaaa aaaaaaaa aa aaa aaa! :-) --aaa","aaaa":"00\/00\/00","aaaaaa":"","aaaa_aaa":""},{"aaaaaa":"aaaaaa aaaa - aaaaaaaa aaaaaa aaa","aaaaaaa":"aaaaaa aa aaa aaa aaaaaaaa aaaaa aaaaaa aa aaaa aa aaa aaaaa aaa aaaaa. aaaa aaaa aaaaaa aaaaaaaaa !!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaa aaaaaaaaa","aaaaaaa":"aa aaaaaa aaaa aaaaaaaa aa aaaa aa aaaa aa a aaaa aaaaa aaa aaaaaaaaaa. aaaa aa aa aaaaaa aa a aaaa aaaaa.","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaaaa aaa aaaaaaaaaaa aaaaaaa aaaaaa","aaaaaaa":"aaaaa aaaaa. aaaa aa aaa aaaaaa aaaaaaaaa!!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"},{"aaaaaa":"aaaaaaaaa aaaaaa","aaaaaaa":"aaaaaaa aaa aaaa aaaaaa&#00;a aaaaaaaaa aaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a0000.00","aaaa_aaa":"\u00a000.00"},{"aaaaaa":"aaaaaaa aaaaaa","aaaaaaa":"aaaaaaaaa aaaaa, aaa! aaaaaaa &aaa; aaaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"},{"aaaaaa":"aaaaa aaaaaaaa","aaaaaaa":"aaaaaaaa aaaaaaa - aaaaaaa aaaaaaaaa a aaa aaa aaaaaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaaa","aaaaaaa":"aaaaaaaaaaaa - aaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a0000.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaaaaaaaa","aaaaaaa":"aaaa aaaa!!!","aaaa":"00\/00\/00","aaaaaa":"\u00a00.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaaaa","aaaaaaa":"aaaa aaaa aaaaa, aaaaaaa, aaaaaaa, aaaaa, aaa, aaaa, aaa, aaaaaaaa, aaaa, aaa, aaaaa, aaa, aaa, aaaaa, aaa, aaaa, aaaa, aaaa, aaaaa, aaa, aaaaaaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaaa aaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaa aaaaaa","aaaaaaa":"aaaa aaa aa aa aaaa aa a aaaaaaa aa aaaaa! aaa aaa aaaaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaa aaaaaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaa aaaaaaaa","aaaaaaa":"aa aa aa! :)","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaa aaaaaaaaa","aaaaaaa":"aaaa a aaaaaa aaaaaaaaa aaaa aa aa aaa :)","aaaa":"00\/00\/00","aaaaaa":"","aaaa_aaa":""},{"aaaaaa":"aaa-aaaaaaa aaaaaaaa","aaaaaaa":"aaaa aaaaaaaa aa aa aaa aaaa aa aa aaaaaaaaaaa, aaaa a. aaaaaaaa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaa aaaa","aaaaaaa":"","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaaaaaa aaaa","aaaaaaa":"a aaaaaaaa aa aaa aaaaaaaa aaaaa aaa aa aaaaa aa aaaaa aaa aaaaa aaaaa aa aaa aaaaaa aa aaaaaaaaa.","aaaa":"00\/00\/00","aaaaaa":"","aaaa_aaa":""},{"aaaaaa":"aaaaaaa aaaaaaa","aaaaaaa":"aaaaa aaaaaaaa aaa aaaa aaaaaaa aaaa aaaaaa aaa!","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":""},{"aaaaaa":"aaa aaaa","aaaaaaa":"aaaa aaaa aaaa aaaa aaaaaaaaaaa aaaa aaa aaa aaaaaaaaa aaaa aaa aa","aaaa":"00\/00\/00","aaaaaa":"\u00a000.00","aaaa_aaa":"\u00a00.00"}],"aaaa_aaaaaaa":"","aaaa_aaa":"\u00a0000.00","aaaaaaaaa_aaaaaa":"\u00a00,000.00","aaaaaaaaa_aaaaa":"\u00a00,000.00","aaaaaaa_aaaa":"aaaa:\/\/aaa.aaaaaaaaaa.aaa\/\/aaaaa\/aaaaaaa.aaaa?aaaa=aaaaaaa&aaaaaaaaa=aaaaaaaaaaa&aaaaa=000&aaaaaa=000&aaa=aaaa_aaaa0.aaa","aaaaaaaaa_aaaaaa":"\u00a00,000.00","aaaaaaaaa_aaaaaaa":"\u00a00.00","aaa_aaaaaa":true,"aaaaaaaaaa_aaaaaaaa":00}

我想避免必须在我自己的域上的服务器上执行此操作，以尽量减少服务器负载。

来源

2010-07-29 Andreas Jansson

检查结果JSON格式是否有效。 – 2010-07-29 19:27:24

请发布净化版本，如果没有它，我们无法确定返回的错误。 – Lazarus 2010-07-29 19:27:31

jQuery 1.4中的JSON解析比以前的版本更严格。根据您的浏览器，它可能会使用本机JSON解析，这与eval不同。一个很大的区别是，现在，所有密钥必须用双引号引起来，而不是单引号。 eval会像你说的那样没有错误地执行它，因为JS根本不会严格引用属性名称，但它会失败JSON解析。

我在将项目转换为jq 1.4时遇到了一个问题，因为我有一些手动构建json字符串的旧代码。例如

return "{'a':12}"; // fails parsing due to single quotes

最好就是使用内置JSON库：

return '{"a":12}'; // works 
return json_encode(array('a'=>12)); // preferred! 
return json.dumps({'a':12}) # etc.

，因为他们总能产生有效的JSON。

来源

2010-07-29 19:33:41 JAL

我认为你是对的，响应数据中有一些未转义的值。问题是我没有拥有我请求数据的域名，那么在它调用内置的eval函数之前，有没有办法拦截jQuery的JSONP处理？ – 2010-07-30 08:58:30

您可以将数据作为字符串获取，然后调用eval或json.parse。 – JAL 2010-07-30 14:12:14

谢谢，问题似乎是jQuery处理JSONP的方式。我不知道内部结构，但它似乎将其作为一个脚本来获取，然后在将控制权交给jQuery之前，浏览器设法找到一些语法问题并抛出错误。 beforeSend（）或dataFilter（）都不被触发。我想我只需要在我自己的服务器上进行处理。 – 2010-08-02 09:23:31

JSON示例无效。它包括这个子字符串：

}, {

也就是说，它结束一个对象并启动另一个对象。所以它似乎是一个对象数组，除非没有括住方括号。

编辑：我的错！它确实有一个嵌套的数组。也许你应该在产生它时“很好地打印”它，以便更容易地看出问题的所在。

来源

2010-07-30 09:00:48

有趣的是，根据http://jsonformatter.curiousconcept.com/表示JSON有效。

正如其他人指出... jQuery的1.4不接受畸形的JSON，更早版本，将不过（如果你想要去的方向为一些疯狂的原因。）

你是如何调用实际JSON数据元素码？我遇到了几次问题......完全有效的JSON，但在jQuery中不是很容易调用。

一个例子：tumblr（博客引擎）的API ......由于某些原因，他们使用...“ - ”...所以对于博客文章的“身体”，他们有“正规体”.. 。jQuery对这种激情十分讨厌。

你会认为你可以做...

json.posts[2].regular-body

但是，这会报错，所以你需要[] ...

json.posts[2]['regular-body']

所以......

如果你能更详细地提供有关你如何调用JSON数据elements推荐给您的好心人？

来源

2010-07-30 09:38:51

我无法查询JSON数据中的单个元素，因为脚本在getJSON函数中因错误而死亡。 – 2010-07-30 11:15:29

我现在也经历同样的问题，我的服务器响应正确的json数据。我遵循你使用过的相同的代码模式。我在这里评论之前做过R & D，以解决这个错误。正如我们使用“callback =？”在url中，它倾向于请求对象为JSONP。它假定响应以JSONP格式提供，但响应以纯JSON格式显示。一旦得到响应，它会尝试根据JSONP进行解析，而不是像JSON。如果我错了，请告诉我，如果问题得到解决，请告诉我。谢谢。

来源

2014-03-14 12:09:33 Rajendra

$ .getJSON失败，解析错误

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