使用Java来httprequest.post(url)带参
时间: 2024-03-16 22:44:12 浏览: 33
可以使用Java中的HttpURLConnection类来实现HTTP POST请求,并在请求中传递参数。以下是一个示例代码:
```java
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class HttpPostExample {
private final String USER_AGENT = "Mozilla/5.0";
public static void main(String[] args) throws Exception {
HttpPostExample http = new HttpPostExample();
// URL和参数
String url = "http://example.com/api";
String urlParameters = "param1=" + URLEncoder.encode("value1", "UTF-8")
+ "¶m2=" + URLEncoder.encode("value2", "UTF-8");
// 发送POST请求
String response = http.sendPost(url, urlParameters);
System.out.println(response);
}
// 发送POST请求
private String sendPost(String url, String urlParameters) throws Exception {
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
// 添加请求头
con.setRequestMethod("POST");
con.setRequestProperty("User-Agent", USER_AGENT);
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
// 发送POST请求
con.setDoOutput(true);
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(urlParameters);
wr.flush();
wr.close();
// 获取响应
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
return response.toString();
}
}
```
其中,`sendPost`方法接收URL和参数,使用`HttpURLConnection`类发送POST请求,并获取响应。在请求头中设置`User-Agent`和`Accept-Language`,在请求体中添加参数。注意,这里使用了`URLEncoder`类对参数进行编码,以避免特殊字符引起的问题。
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