请求第三方Https地址忽略SSL证书校验

请求第三方Https地址忽略SSL证书校验

说明:个人使用记录

需要依赖

<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpcore</artifactId>
    <version>4.4.9</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpclient</artifactId>
    <version>4.5.13</version>
</dependency>
<dependency>
    <groupId>org.apache.httpcomponents</groupId>
    <artifactId>httpmime</artifactId>
    <version>4.5.12</version>
</dependency>

首先创建忽略工具

import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

public class TrustAllTrustManager implements TrustManager, X509TrustManager {
    @Override
    public void checkClientTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

    }

    @Override
    public void checkServerTrusted(X509Certificate[] x509Certificates, String s) throws CertificateException {

    }

    @Override
    public X509Certificate[] getAcceptedIssuers() {
        return new X509Certificate[0];
    }
}

方式一： HttpURLConnection

需要在请求之前忽略ssl协议，这里是直接使用静态方法初始化时就执行了

static{
        //直接通过主机认证
        HostnameVerifier verifier = new HostnameVerifier() {
            @Override
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        };
        TrustManager[] trustManagers = {new TrustAllTrustManager()};
        SSLContext sc = null;
        try {
            sc = SSLContext.getInstance("SSL");
            SSLSessionContext sslc = sc.getServerSessionContext();
            sslc.setSessionTimeout(0);
            sc.init(null,trustManagers,null);
            HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
            //激活主机认证
            HttpsURLConnection.setDefaultHostnameVerifier(verifier);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

方式二：HttpGet 或 HttpPost

也需要在请求接口之前忽略SSL文章来源地址https://www.toymoban.com/news/detail-846459.html

//记得try 或 throws 异常
SSLConnectionSocketFactory scsf = new SSLConnectionSocketFactory(
		SSLContexts.custom.loadTrustMaterial(null,
		new TrustSelfSignedStrategy()).build(),NoopHostnameVerifier.INSTANCE);
CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(scsf).build();
//请求
HttpGet request = new HttpGet("请求地址");

举例：请求第三方接口 并 上传文件

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;

import javax.net.ssl.*;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.MessageDigest;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * dms 交互物文件处理
 */
@Component
public class DmsHelper {

    static{
        //直接通过主机认证
        HostnameVerifier verifier = new HostnameVerifier() {
            @Override
            public boolean verify(String s, SSLSession sslSession) {
                return true;
            }
        };
        TrustManager[] trustManagers = {new TrustAllTrustManager()};
        SSLContext sc = null;
        try {
            sc = SSLContext.getInstance("SSL");
            SSLSessionContext sslc = sc.getServerSessionContext();
            sslc.setSessionTimeout(0);
            sc.init(null,trustManagers,null);
            HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
            //激活主机认证
            HttpsURLConnection.setDefaultHostnameVerifier(verifier);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 测试使用
     */
    public static void main(String[] args) throws Exception {

        String filepath = "上传的文件地址";
        String urlStr = "第三方接口";

		//form-data 参数
        Map<String, String> textMap = new HashMap<String, String>();
        textMap.put("name", "1");
		//上传的文件
        Map<String, String> fileMap = new HashMap<String, String>();
        fileMap.put("file", filepath);
        String ret = formUpload(urlStr, textMap, fileMap);
        System.out.println(ret);
    }
    
    /**
     * 上传图片
     * @param urlStr
     * @param textMap
     * @param fileMap
     * @return
     */
    public static String formUpload(String urlStr, Map<String, String> textMap, Map<String, String> fileMap) {

        String res = "";
        HttpURLConnection conn = null;
        String BOUNDARY = "---------------------------123821742118716"; //boundary就是request头和上传文件内容的分隔符
        try {
            URL url = new URL(urlStr);
            conn = (HttpURLConnection) url.openConnection();
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(30000);
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setUseCaches(false);
            conn.setRequestMethod("POST");
            conn.setRequestProperty("Connection", "Keep-Alive");
            conn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)");
            conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);

            OutputStream out = new DataOutputStream(conn.getOutputStream());
            // text
            if (textMap != null) {
                StringBuffer strBuf = new StringBuffer();
                Iterator<Map.Entry<String, String>> iter = textMap.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry<String, String> entry = iter.next();
                    String inputName = (String) entry.getKey();
                    String inputValue = (String) entry.getValue();
                    if (inputValue == null) {
                        continue;
                    }
                    strBuf.append("\r\n").append("--").append(BOUNDARY).append("\r\n");
                    strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"\r\n\r\n");
                    strBuf.append(inputValue);
                }
                out.write(strBuf.toString().getBytes());
            }

            // file
            if (fileMap != null) {
                Iterator<Map.Entry<String, String>> iter = fileMap.entrySet().iterator();
                while (iter.hasNext()) {
                    Map.Entry<String, String> entry = iter.next();
                    String inputName = (String) entry.getKey();
                    String inputValue = (String) entry.getValue();
                    if (inputValue == null) {
                        continue;
                    }
                    File file = new File(inputValue);
                    String filename = file.getName();
                    String contentType = filename.substring(filename.lastIndexOf(".")+1,filename.length());//文件类型


                    StringBuffer strBuf = new StringBuffer();
                    strBuf.append("\r\n").append("--").append(BOUNDARY).append("\r\n");
                    strBuf.append("Content-Disposition: form-data; name=\"" + inputName + "\"; filename=\"" + filename + "\"\r\n");
                    strBuf.append("Content-Type:" + contentType + "\r\n\r\n");

                    out.write(strBuf.toString().getBytes());

                    DataInputStream in = new DataInputStream(new FileInputStream(file));
                    int bytes = 0;
                    byte[] bufferOut = new byte[1024];
                    while ((bytes = in.read(bufferOut)) != -1) {
                        out.write(bufferOut, 0, bytes);
                    }
                    in.close();
                }
            }

            byte[] endData = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();
            out.write(endData);
            out.flush();
            out.close();

            // 读取返回数据
            StringBuffer strBuf = new StringBuffer();
            BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                strBuf.append(line).append("\n");
            }
            res = strBuf.toString();
            reader.close();
            reader = null;
        } catch (Exception e) {
            System.out.println("发送POST请求出错。" + urlStr);
            e.printStackTrace();
        } finally {
            if (conn != null) {
                conn.disconnect();
                conn = null;
            }
        }
        return res;
    }


    /**
     * md5加密
     */
    public static String GenerateSignature(String str){
        String signature = "";
        try{
            //创建一个提供信息摘要算法的对象，初始化为md5算法对象
            MessageDigest md = MessageDigest.getInstance("MD5");
            //计算后获得字节数组
            byte[] bytes = md.digest(str.getBytes("utf-8"));
            //把数组每一字节换成16进制连成md5字符串
            signature = bytesToHex(bytes);
        }catch (Exception e) {
            e.printStackTrace();
        }
        return signature;
    }

    public static String bytesToHex(byte[] bytes) {
        StringBuffer md5str = new StringBuffer();
        //把数组每一字节换成16进制连成md5字符串
        int digital;
        for (int i = 0; i < bytes.length; i++) {
            digital = bytes[i];
            if (digital < 0) {
                digital += 256;
            }
            if (digital < 16) {
                md5str.append("0");
            }
            md5str.append(Integer.toHexString(digital));
        }
        return md5str.toString();
    }

}

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