package com.ruoyi.user.vx.utils;
|
|
import com.alibaba.fastjson2.JSONObject;
|
|
import java.io.BufferedReader;
|
import java.io.IOException;
|
import java.io.InputStreamReader;
|
import java.io.PrintWriter;
|
import java.net.URL;
|
import java.net.URLConnection;
|
import java.util.List;
|
import java.util.Map;
|
|
/**
|
* @author HJL
|
*/
|
public class HttpRequest {
|
|
/**
|
* 向指定URL发送GET方法的请求
|
*
|
* @param url 发送请求的URL
|
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
|
* @return URL 所代表远程资源的响应结果
|
*/
|
public static String sendGet(String url, String param) {
|
StringBuilder result = new StringBuilder();
|
BufferedReader in = null;
|
try {
|
String urlNameString;
|
if (null == param) {
|
urlNameString = url;
|
} else {
|
urlNameString = url + "?" + param;
|
}
|
URL realUrl = new URL(urlNameString);
|
// 打开和URL之间的连接
|
URLConnection connection = realUrl.openConnection();
|
// 设置通用的请求属性
|
connection.setRequestProperty("accept", "*/*");
|
connection.setRequestProperty("connection", "Keep-Alive");
|
connection.setRequestProperty("user-agent",
|
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
|
// 建立实际的连接
|
connection.connect();
|
// 获取所有响应头字段
|
Map<String, List<String>> map = connection.getHeaderFields();
|
// 遍历所有的响应头字段
|
for (String key : map.keySet()) {
|
System.out.println(key + "--->" + map.get(key));
|
}
|
// 定义 BufferedReader输入流来读取URL的响应
|
in = new BufferedReader(new InputStreamReader(
|
connection.getInputStream()));
|
String line;
|
while ((line = in.readLine()) != null) {
|
result.append(line);
|
}
|
} catch (Exception e) {
|
System.out.println("发送GET请求出现异常！" + e);
|
e.printStackTrace();
|
}
|
// 使用finally块来关闭输入流
|
finally {
|
try {
|
if (in != null) {
|
in.close();
|
}
|
} catch (Exception e2) {
|
e2.printStackTrace();
|
}
|
}
|
return result.toString();
|
}
|
|
/**
|
* 向指定 URL 发送POST方法的请求
|
*
|
* @param url 发送请求的 URL
|
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
|
* @return 所代表远程资源的响应结果
|
*/
|
public static String sendPost(String url, String param) {
|
PrintWriter out = null;
|
BufferedReader in = null;
|
StringBuilder result = new StringBuilder();
|
try {
|
URL realUrl = new URL(url);
|
// 打开和URL之间的连接
|
URLConnection conn = realUrl.openConnection();
|
// 设置通用的请求属性
|
conn.setRequestProperty("accept", "*/*");
|
conn.setRequestProperty("connection", "Keep-Alive");
|
conn.setRequestProperty("user-agent",
|
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
|
// 发送POST请求必须设置如下两行
|
conn.setDoOutput(true);
|
conn.setDoInput(true);
|
// 获取URLConnection对象对应的输出流
|
out = new PrintWriter(conn.getOutputStream());
|
// 发送请求参数
|
out.print(param);
|
// flush输出流的缓冲
|
out.flush();
|
// 定义BufferedReader输入流来读取URL的响应
|
in = new BufferedReader(
|
new InputStreamReader(conn.getInputStream()));
|
String line;
|
while ((line = in.readLine()) != null) {
|
result.append(line);
|
}
|
} catch (Exception e) {
|
System.out.println("发送 POST 请求出现异常！" + e);
|
e.printStackTrace();
|
}
|
//使用finally块来关闭输出流、输入流
|
finally {
|
try {
|
if (out != null) {
|
out.close();
|
}
|
if (in != null) {
|
in.close();
|
}
|
} catch (IOException ex) {
|
ex.printStackTrace();
|
}
|
}
|
return result.toString();
|
}
|
|
/**
|
* 向指定 URL 发送POST方法的请求
|
*
|
* @param url 发送请求的 URL
|
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
|
* @return 所代表远程资源的响应结果
|
*/
|
public static String sendPostNew(String url, JSONObject param) {
|
PrintWriter out = null;
|
BufferedReader in = null;
|
String result = "";
|
try {
|
URL realUrl = new URL(url);
|
// 打开和URL之间的连接
|
URLConnection conn = realUrl.openConnection();
|
// 设置通用的请求属性
|
conn.setRequestProperty("accept", "*/*");
|
conn.setRequestProperty("connection", "Keep-Alive");
|
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
|
// 发送POST请求必须设置如下两行
|
conn.setDoOutput(true);
|
conn.setDoInput(true);
|
// 获取URLConnection对象对应的输出流
|
out = new PrintWriter(conn.getOutputStream());
|
// 发送请求参数
|
out.print(param);
|
// flush输出流的缓冲
|
out.flush();
|
// 定义BufferedReader输入流来读取URL的响应
|
in = new BufferedReader(
|
new InputStreamReader(conn.getInputStream()));
|
String line;
|
while ((line = in.readLine()) != null) {
|
result += line;
|
}
|
} catch (Exception e) {
|
System.out.println("发送 POST 请求出现异常！" + e);
|
e.printStackTrace();
|
}
|
//使用finally块来关闭输出流、输入流
|
finally {
|
try {
|
if (out != null) {
|
out.close();
|
}
|
if (in != null) {
|
in.close();
|
}
|
} catch (IOException ex) {
|
ex.printStackTrace();
|
}
|
}
|
return result;
|
}
|
|
|
}
|
