通讯工具类访问外网

Dear 丶 2022-06-06 04:42 103阅读 0赞

import java.io.BufferedReader;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    import java.io.OutputStream;
    import java.io.UnsupportedEncodingException;
    import java.net.ConnectException;
    import java.net.URL;
    
    import javax.net.ssl.HttpsURLConnection;
    import javax.net.ssl.SSLContext;
    import javax.net.ssl.SSLSocketFactory;
    import javax.net.ssl.TrustManager;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    
    import com.fh.entity.AccessToken;
    import com.fh.service.weixinshop.AccessTokenService;
    
    import net.sf.json.JSONObject;
            
    
    
    
              发送https请求
    	 * 
    	 * @param requestUrl 请求地址
    	 * @param requestMethod 请求方式（GET、POST）
    	 * @param outputStr 提交的数据
    	 * @return JSONObject(通过JSONObject.get(key)的方式获取json对象的属性值)
    	 */
    	public static JSONObject httpsRequest(String requestUrl, String requestMethod, String outputStr) {
    		JSONObject jsonObject = null;
    		try {
    			// 创建SSLContext对象，并使用我们指定的信任管理器初始化
    			TrustManager[] tm = { new MyX509TrustManager() };
    			SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
    			sslContext.init(null, tm, new java.security.SecureRandom());
    			// 从上述SSLContext对象中得到SSLSocketFactory对象
    			SSLSocketFactory ssf = sslContext.getSocketFactory();
    
    			URL url = new URL(requestUrl);
    			HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
    			conn.setSSLSocketFactory(ssf);
    			
    			conn.setDoOutput(true);
    			conn.setDoInput(true);
    			conn.setUseCaches(false);
    			// 设置请求方式（GET/POST）
    			conn.setRequestMethod(requestMethod);
    
    			// 当outputStr不为null时向输出流写数据
    			if (null != outputStr) {
    				OutputStream outputStream = conn.getOutputStream();
    				// 注意编码格式
    				outputStream.write(outputStr.getBytes("UTF-8"));
    				outputStream.close();
    			}
    
    			// 从输入流读取返回内容
    			InputStream inputStream = conn.getInputStream();
    			InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8");
    			//BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
    			BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(conn.getInputStream(),"utf-8"));
    			String str = null;
    			StringBuffer buffer = new StringBuffer();
    			while ((str = bufferedReader.readLine()) != null) {
    				buffer.append(str);
    			}
    
    			// 释放资源
    			bufferedReader.close();
    			inputStreamReader.close();
    			inputStream.close();
    			inputStream = null;
    			conn.disconnect();
    			jsonObject = JSONObject.fromObject(buffer.toString());
    		} catch (ConnectException ce) {
    			log.error("连接超时：{}", ce);
    		} catch (Exception e) {
    			log.info("请求微信 异常------ "+e.getMessage());
    			log.error("https请求异常：{}", e);
    		}
    		return jsonObject;
    	}

在接口中使用此方法获取微信的网页授权，并且获得用户的openid信息

另一个实体类

import java.security.cert.CertificateException;
    import java.security.cert.X509Certificate;
    import javax.net.ssl.X509TrustManager;
    
    
    public class MyX509TrustManager implements X509TrustManager {
    
    	public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    	}
    
    	public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    	}
    
    	public X509Certificate[] getAcceptedIssuers() {
    		return null;
    	}
    }