1.信任证书管理类

 Java

package cn.wja.component; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.security.cert.X509Certificate; 
 
 class MyX509TrustManager implements X509TrustManager { 
    @Override 
    public void checkClientTrusted(X509Certificate[] x509Certificates, String s)  { 
    } 
 
    @Override 
    public void checkServerTrusted(X509Certificate[] x509Certificates, String s)  { 
    } 
 
    @Override 
    public X509Certificate[] getAcceptedIssuers() { 
        return null; 
    } 
 
    public static TrustManager[] getTrustManagers() { 
        TrustManager[] trustAllCertificates = {new MyX509TrustManager()}; 
        return trustAllCertificates; 
    } }

2.HttpClient类

 Java

package cn.wja.component; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLParameters; import javax.net.ssl.TrustManager; import java.net.http.HttpClient; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.SecureRandom; import java.time.Duration; 
 public class MyHttpClient { 
    static public HttpClient getClient() throws NoSuchAlgorithmException, KeyManagementException { 
        TrustManager[] trustManagers = MyX509TrustManager.getTrustManagers(); 
        var timeoutInSeconds = 60; 
        SSLParameters sslParams = new SSLParameters(); 
        sslParams.setEndpointIdentificationAlgorithm(""); 
        SSLContext sc = SSLContext.getInstance("SSL"); 
        //取消主机名验证 
        System.setProperty("jdk.internal.httpclient.disableHostnameVerification", "true"); 
        sc.init(null, trustManagers, new SecureRandom()); 
        return HttpClient.newBuilder() 
                .connectTimeout(Duration.ofMillis(timeoutInSeconds * 1000)) 
                .sslContext(sc) 
                .sslParameters(sslParams) 
                .followRedirects(HttpClient.Redirect.NEVER) 
                .version(HttpClient.Version.HTTP_2) 
                .build(); 
    } }

3.发送请求工具类

 Java

package cn.wja.util; 
 import cn.wja.component.MyHttpClient; import java.net.URI; import java.net.http.HttpClient; import java.net.http.HttpRequest; import java.net.http.HttpResponse; 
 
 import static java.nio.charset.StandardCharsets.UTF_8; 
 public class HttpUtils { 
 
    public static HttpResponse<String> sendGet(String urlStr, String cookieStr) throws Exception { 
        HashMap<String, String> hashMap = new HashMap<>(); 
        hashMap.put("Cookie",cookieStr); 
        return sendGet(urlStr,hashMap); 
    } 
 
 
    public static HttpResponse<String> sendGet(String urlStr, Map<String,String> headers) throws KeyManagementException, NoSuchAlgorithmException, IOException, InterruptedException { 
        HttpClient client = MyHttpClient.getClient(); 
        HttpRequest.Builder reqBuilder = getReqBuilder(urlStr); 
        reqBuilder.GET(); 
        for (String key:headers.keySet()){ 
            reqBuilder.header(key, headers.get(key)); 
        } 
        HttpRequest request = reqBuilder.build(); 
        HttpResponse<String> result = client.send(request, HttpResponse.BodyHandlers.ofString(UTF_8)); 
        return result; 
    } 
 
    private static HttpResponse<String> sendPost(String contentType, String urlStr, String bodyStr, String cookieStr) throws Exception { 
        HttpClient client = MyHttpClient.getClient(); 
        HttpRequest.Builder reqBuilder = getReqBuilder(urlStr); 
        HttpRequest.BodyPublisher bodyPublisher = HttpRequest.BodyPublishers.ofString(bodyStr); 
        reqBuilder.header("Content-Type", contentType) 
                .POST(bodyPublisher) 
                .header("Cookie", cookieStr); 
        HttpRequest request = reqBuilder.build(); 
        HttpResponse<String> result = client.send(request, HttpResponse.BodyHandlers.ofString(UTF_8)); 
        return result; 
    } 
     
    public static HttpResponse<String> sendFormPost(String urlStr, String formStr, String cookieStr) throws Exception { 
        return sendPost("application/x-www-form-urlencoded;charset=utf-8", urlStr, formStr, cookieStr); 
    } 
 
    public static HttpResponse<String> sendJsonPost(String urlStr, String jsonStr, String cookieStr) throws Exception { 
        return sendPost("application/json;charset=utf-8", urlStr, jsonStr, cookieStr); 
    } 
 
    public static HttpRequest.Builder getReqBuilder(String urlStr) { 
        return HttpRequest.newBuilder() 
                .uri(URI.create(urlStr)) 
                .header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:96.0) Gecko/20100101 Firefox/96.0"); 
    } }

4.测试

测试表明，通过调用工具类方法，可以直接发送GET请求和带Form表单/Json的POST请求。如果您要发送其他形式的HTTP请求，也可以参照上述代码自行实现。