Java HttpURLConnection getResponseMessage

2025 年 3 月 22 日 | 阅读需 2 分钟

getResponseMessage 是 Java HttpURLConnection 类的一个方法。此方法用于从 HTTP 响应消息中获取响应代码。例如，如果服务器的响应代码是 HTTP/1.0 200 OK 或 HTTP/1.0 404 Not Found，它将提取字符串 OK 和 Not Found，否则如果 HTTP 无效则返回 null。

语法

public String getResponseMessage()
         throws IOException

返回值

它返回 HTTP 响应消息或 null

Throw

IOException - 如果连接服务器时发生错误，则抛出此异常。

示例 1

import java.io.IOException; 
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectionGetRequestMethodExample1 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
    { 
        //starting the try block
        try {
        String link_url = "https://tpointtech.cn";
        URL obj1 = new URL(link_url); //URL Connection Created...
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        System.out.println("https://tpointtech.cn");
        System.out.println("Connection Response Message : "+con1.getResponseMessage());
        con1.disconnect();
        }
        catch (Exception e) {
            System.out.println( e);
        }
}
}

输出

https://tpointtech.cn
Connection Response Message : 200

示例 2

import java.io.IOException; 
import java.net.HttpURLConnection; 
import java.net.URL; 
public class JavaHttpURLConnectionGetRequestMethodExample2 {
    //Starting the main method...
    public static void main(String h[]) throws IOException 
    { 
        //starting the try block
        try {
        String link_url = "https://#";
        URL obj1 = new URL(link_url); //URL Connection Created...
        HttpURLConnection con1 = (HttpURLConnection) obj1.openConnection(); //Http URL Connection Created...
        System.out.println("https://#");
        System.out.println("Connection Response Message : "+con1.getResponseMessage());
        con1.disconnect();
        }
        catch (Exception e) {
            System.out.println( e);
        }
}
}

输出

https://#
Connection Response Message : OK

下一个主题Java HttpURLConnection 类

Java HttpURLConnection getResponseMessage

语法

返回值

Throw

示例 1

示例 2

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Java HttpURLConnection getResponseMessage

语法

返回值

Throw

示例 1

示例 2

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