在Android的阅读的Json在web服务休息。 FileNotFoundException异常 [英] Reading Json in webservice Rest in Android. FileNotFoundException

问题描述

有人知道为什么没有在Android版此JSON？ urlJson

结果是Fi​​leNotFoundException异常，但在导航仪的工作原理。

编辑：

 公共静态字符串readUrl（字符串urlString）抛出异常{
        读者的BufferedReader = NULL;        尝试{
            网址URL =新的URL（urlString）;
            读者=新的BufferedReader（新的InputStreamReader（url.openStream（）））;
            StringBuffer的缓冲区=新的StringBuffer（）;
            INT读;
            的char [] =字符新的char [1024];
            而（（读= reader.read（字））！= -1）
                buffer.append（字符，0，读）;            返回buffer.toString（）;
        } {最后
            如果（读者！= NULL）
                reader.close（）;
        }
 

解决方案

使用的BufferedReader是不是做这个任务的最佳方法。
很多更好地利用HttpClient的使用图书馆org.json下面的示例*;

 的HttpClient HttpClient的=新DefaultHttpClient（）;    HttpPost后=新HttpPost（HTTP：//www.*****.com/json）;        //执行HTTP POST请求
        HTT presponse响应= httpClient.execute（岗位）;
        串respStr = EntityUtils.toString（response.getEntity（））;        JSONArray respJSON =新JSONArray（respStr）;
 

Someone know why not works this json in android? urlJson

Result is FileNotFoundException, but on the navigator works.

edit:

public static String readUrl(String urlString) throws Exception {
        BufferedReader reader = null;

        try{
            URL url = new URL(urlString);
            reader = new BufferedReader(new InputStreamReader (url.openStream()));
            StringBuffer buffer = new StringBuffer();
            int read;
            char[]chars = new char[1024];
            while ((read = reader.read(chars)) != -1)
                buffer.append(chars, 0, read); 

            return buffer.toString();
        } finally {
            if (reader != null)
                reader.close();
        }

解决方案

Use BufferedReader is not the best method to do this task. Is a lot better use HttpClient with following sample using the library org.json.*;

HttpClient httpClient = new DefaultHttpClient();

    HttpPost post = new HttpPost("http://www.*****.com/json");

        // Execute HTTP Post Request
        HttpResponse response = httpClient.execute(post);
        String respStr = EntityUtils.toString(response.getEntity());

        JSONArray respJSON = new JSONArray(respStr);

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