将发布数据从一个java servlet写入另一个 [英] Writing post data from one java servlet to another

问题描述

我正在尝试编写一个servlet，它将通过POST将XML文件（xml格式化的字符串）发送到另一个servlet。
（非必要的xml生成代码替换为Hello there）

I am trying to write a servlet that will send a XML file (xml formatted string) to another servlet via a POST. (Non essential xml generating code replaced with "Hello there")

   StringBuilder sb=  new StringBuilder();
    sb.append("Hello there");

    URL url = new URL("theservlet's URL");
    HttpURLConnection connection = (HttpURLConnection)url.openConnection();                
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Length", "" + sb.length());

    OutputStreamWriter outputWriter = new OutputStreamWriter(connection.getOutputStream());
    outputWriter.write(sb.toString());
    outputWriter.flush();
    outputWriter.close();

这导致服务器错误，并且永远不会调用第二个servlet。

This is causing a server error, and the second servlet is never invoked.

推荐答案

使用像 HttpClient 。甚至还有发布XML代码示例：

PostMethod post = new PostMethod(url);
RequestEntity entity = new FileRequestEntity(inputFile, "text/xml; charset=ISO-8859-1");
post.setRequestEntity(entity);
HttpClient httpclient = new HttpClient();
int result = httpclient.executeMethod(post);

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