解决Jsoup或HttpClient 连 https 报错：Remote host closed connection during handshake

home 编辑时间 2019/07/11

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## 报错
主要报错信息如下：
`javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake`
`java.io.EOFException: SSL peer shut down`
```java
javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake
	at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
	at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
	at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
	at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
	at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
	at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:730)
	at org.jsoup.helper.HttpConnection$Response.execute(HttpConnection.java:705)
	at org.jsoup.helper.HttpConnection.execute(HttpConnection.java:295)
	at org.jsoup.helper.HttpConnection.get(HttpConnection.java:284)
Caused by: java.io.EOFException: SSL peer shut down incorrectly
	at sun.security.ssl.InputRecord.read(Unknown Source)
```

## 解决
参考：
https://blog.csdn.net/qq_30831935/article/details/94299220

依赖
```java
import javax.net.ssl.*;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
```

方法
```java
/** 信任任何站点 */
public static void trustEveryone() {
    try {
        HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
            @Override
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        });

SSLContext context = SSLContext.getInstance("TLS");
        context.init(null, new X509TrustManager[] { new X509TrustManager() {
            @Override
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }

@Override
            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }

@Override
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }
        } }, new SecureRandom());
        HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());
    } catch (Exception e) {
         e.printStackTrace();
    }
}
```

## 用法
**直接在https发生连接代码的前面加入 `trustEveryone();` 即可**

例如：
```java
trustEveryone();
Jsoup.connect(url).get();
```
或者
```java
trustEveryone();
CloseableHttpResponse response = httpclient.execute(httpget);
```

## END
补充：用了这个方法以后，绝大部分情况可以正常，小概率还有可能触发此报错，初步猜测和网络环境也有有一定关系。
用浏览器试了下，同一个网络环境下浏览器能正常打开，基本就不会有问题。

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