用java写一个post调用方法
时间: 2024-06-08 20:05:32 浏览: 15
以下是一个使用Java发送POST请求的示例代码:
```java
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class HttpPostExample {
public static void main(String[] args) {
try {
String url = "http://example.com/api"; // 要请求的API地址
String data = "param1=" + URLEncoder.encode("value1", "UTF-8") + "¶m2=" + URLEncoder.encode("value2", "UTF-8"); // 要发送的数据,按照请求格式拼接
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
con.setRequestMethod("POST");
con.setRequestProperty("User-Agent", "Mozilla/5.0");
con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
con.setDoOutput(true);
con.getOutputStream().write(data.getBytes("UTF-8")); // 将数据写入请求体
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuffer response = new StringBuffer();
while ((inputLine = in.readLine()) != null) {
response.append(inputLine);
}
in.close();
System.out.println(response.toString()); // 输出API返回的数据
} catch (Exception e) {
e.printStackTrace();
}
}
}
```
注意:这只是一个基础的示例代码,实际使用时需要根据具体情况进行修改。