这是你需要做的：

1. 获取Apache HttpClient，这将使你能够发出所需的请求
2. 使用它创建一个HttpPost请求，并添加标题“ application / x-www-form-urlencoded”
3. 创建一个StringEntity，将JSON传递给它
4. 执行通话

代码大致看起来像（你仍然需要对其进行调试并使之正常工作）

//Deprecated
//HttpClient httpClient = new DefaultHttpClient(); 

HttpClient httpClient = HttpClientBuilder.create().build(); //Use this instead 

try {

    HttpPost request = new HttpPost("http://yoururl");
    StringEntity params =new StringEntity("details={\"name\":\"myname\",\"age\":\"20\"} ");
    request.addHeader("content-type", "application/x-www-form-urlencoded");
    request.setEntity(params);
    HttpResponse response = httpClient.execute(request);

    //handle response here...

}catch (Exception ex) {

    //handle exception here

} finally {
    //Deprecated
    //httpClient.getConnectionManager().shutdown(); 
}