Ajax.request使用ExtJs [英] Ajax.request using ExtJs

问题描述

我无法从文件加载JSON内容。 console.log 打印服务器端故障，状态码为0，表示请求失败。

I'm having difficulty loading JSON content from a file. console.log prints "server-side failure with status code 0", meaning that the request failed.

我的JSON文件网址是正确的，文件存在于给定的地址。

My JSON file URL is correct and the file is present at the given address.

Firebug显示错误：

Firebug shows the error:

"NetworkError: 405 Not Allowed - http://localhost:8080/4910.json?_dc=1336714070619

，Net标签显示状态 405不允许。

and the Net tag shows status 405 not allowed.

任何想法为什么会发生这种情况？

Any ideas on why this is happening?

Ext.Ajax.request({
                   url: 'http://localhost:8080/4910.json',
                   success: function(response, opts) {
                      var obj = Ext.decode(response.responseText);
                      console.log(obj[0].name);
                   },
                   failure: function(response, opts) {
                      console.log('server-side failure with status code ' + response.status);
                   }
                });

另外，在GET请求的结尾添加参数 _dc = 1336714070619 ？

Also, what is adding the parameter _dc=1336714070619 to the end of the GET request?

推荐答案

只是FYI ..

对于谁添加参数_dc 。 dc代表禁用缓存。

默认情况下，extjs中的每个请求都将自动附加请求变量（ _dc ）。更多信息

For the Who is adding parameter _dc. dc stands for disable cache.
by default, every request in extjs will automatically append the request variable with _dc. more info

如果您不想要，只需将 disableCaching：false

If you don't want it, just set disableCaching: false to your request

Ext.Ajax.request({
    disableCaching: false,
    url: 'http://localhost:8080/4910.json',
    ......
});

对于为什么不允许。

尝试打开没有 _dc 的JSON URL路径，或者您的服务器可能出现问题。

For the why not allowed.
Try opening the JSON URL path without _dc, or maybe there is something wrong with your server.

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