Java 为什么我收到500个错误来响应我的JSON请求?
我试图向服务器发送一个JSON,但它总是返回500个错误Java 为什么我收到500个错误来响应我的JSON请求?,java,json,post,urlconnection,Java,Json,Post,Urlconnection,我试图向服务器发送一个JSON,但它总是返回500个错误 java.lang.String contentToPost = jsarray.toJSONString(); java.net.URLConnection connection = new java.net.URL("http://example.com/service?apiKey=12345").openConnection(); connection.setUseCaches(false);
java.lang.String contentToPost = jsarray.toJSONString();
java.net.URLConnection connection = new java.net.URL("http://example.com/service?apiKey=12345").openConnection();
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestProperty("Content-Length", "" + contentToPost.length());
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("Cache-Control", "no-cache");
java.io.OutputStream stream = connection.getOutputStream();
stream.write(contentToPost.getBytes());
stream.close();
System.err.println("request is sent");
// Read the response
java.io.BufferedReader br = new java.io.BufferedReader(new java.io.InputStreamReader(connection.getInputStream()));
java.lang.StringBuffer sb = new java.lang.StringBuffer();
java.lang.String str = br.readLine();
while (str != null) {
sb.append(str);
str = br.readLine();
}
br.close();
java.lang.String responseString = sb.toString();
System.err.println(responseString);
错误
java.io.IOException: Server returned HTTP response code: 500 for URL: http://example.com/service?apiKey=12345
因为服务器或服务器应用程序在处理您的请求时出现内部错误。此错误只能通过对Web服务器软件的修复来解决。这不是客户端问题。由Web服务器站点的操作员定位和分析日志,日志应提供有关错误的进一步信息。这是内部服务器错误。。。您需要查看处理request500系列错误的服务器代码,这些错误通常意味着应用程序的内部错误。有关更多详细信息,请参阅日志中的。