javahttp转发代码
时间: 2023-07-02 17:10:47 浏览: 45
以下是使用Java进行HTTP转发的示例代码:
```java
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
public class HttpForwarder {
private String targetUrl;
public HttpForwarder(String targetUrl) {
this.targetUrl = targetUrl;
}
public void forwardRequest(InputStream inputStream, OutputStream outputStream) throws IOException {
URL url = new URL(targetUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
// copy request headers from original request to forwarded request
// replace any existing "Host" header with the target host
for (String header : request.getHeaderNames()) {
if (header.equalsIgnoreCase("Host")) {
connection.setRequestProperty(header, url.getHost());
} else {
connection.setRequestProperty(header, request.getHeader(header));
}
}
// copy request body from original request to forwarded request
IOUtils.copy(request.getInputStream(), connection.getOutputStream());
// get response from target server and copy it to output stream of original request
IOUtils.copy(connection.getInputStream(), outputStream);
connection.disconnect();
}
}
```
请注意,此示例代码仅适用于简单的HTTP POST请求。如果需要处理其他HTTP方法或更复杂的请求,您需要进行相应的修改。