java.io.IOException：服务器返回 HTTP 响应代码：URL 为 400
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java.io.IOException: Server returned HTTP response code: 400 for URL
提问by Dunken
I am working on a thread java application that hitting a url to send sms messages
the problem is i am behind an NTLM proxy server and i have searched most of the day and tried many solutions but no success the application give the titled error and when i tried to print the error response i have found that its an error page comes from the proxy server
我正在开发一个线程 java 应用程序，它点击一个 url 来发送短信
问题是我在 NTLM 代理服务器后面，我已经搜索了一天的大部分时间并尝试了许多解决方案但没有成功应用程序给出了标题错误，当我试图打印错误响应我发现它的错误页面来自代理服务器
this is the hitting code
这是命中代码
System.setProperty("java.net.useSystemProxies", "true");
System.setProperty("http.proxyHost", AUTH_PROXY");
System.setProperty("http.proxyPort", AUTH_PROXY_PORT);
System.setProperty("http.proxyUser", AUTH_USER);
System.setProperty("http.proxyPassword", AUTH_PASSWORD);
Authenticator.setDefault(
new Authenticator() {
public PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(AUTH_USER, AUTH_PASSWORD.toCharArray());
}
}
);
URL url = new URL(urlString);
HttpURLConnection httpConn =(HttpURLConnection)url.openConnection();
httpConn.setReadTimeout(10000);
String resp = getResponse(httpConn);
logger.info("urlString=" + urlString);
logger.info("Response=" + resp);
here i get the respoonse
在这里我得到了回应
private String getResponse(HttpURLConnection Conn) throws IOException {
InputStream is;
if (Conn.getResponseCode() >= 400) {
is = Conn.getErrorStream();
} else {
is = Conn.getInputStream();
}
String response = "";
byte buff[] = new byte[512];
int b = 0;
while ((b = is.read(buff, 0, buff.length)) != -1) {
response += new String(buff, 0, b);
}
is.close();
return response;
}
any help is appreciated thanks
任何帮助表示赞赏谢谢
采纳答案by Dunken
After many tries i have realized that the code above is fine and the 400 error that i was getting is from not encoding the URL parameters that could have spaces
经过多次尝试，我意识到上面的代码很好，我得到的 400 错误是由于没有对可能有空格的 URL 参数进行编码
just used
刚用过
URLEncoder.encode(urlParameter,"UTF-8");
for parameters that code have spaces solved the problem
对于代码有空格的参数解决了问题
