JDK異常處理No appropriate protocol

異常展示

javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
        at sun.security.ssl.HandshakeContext.<init>(HandshakeContext.java:171) ~[na:1.8.0_292]
        at sun.security.ssl.ClientHandshakeContext.<init>(ClientHandshakeContext.java:98) ~[na:1.8.0_292]
        at sun.security.ssl.TransportContext.kickstart(TransportContext.java:220) ~[na:1.8.0_292]
        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:428) ~[na:1.8.0_292]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:275) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:254) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:118) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:314) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:85) ~[httpclient-4.3.2.jar:4.3.2]
        at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108) ~[httpclient-4.3.2.jar:4.3.2]

分析

倘若是2021年5月后安裝的jdk，最新版jdk不支持ssl

解決辦法

找到j(luò)dk 1.8安裝目錄，找到C:\Program Files\Java\jre里面的lib\security 下面有個(gè)java.security。

找到對(duì)應(yīng)的SSLv3，刪除掉，重啟項(xiàng)目就好了。（刪掉SSLv3就是允許SSL調(diào)用）

紅框中的全部刪除掉即可通過SSL調(diào)用

處理JDK相關(guān)的linux命令

查詢系統(tǒng)自帶的jdk包括自己安裝的openjdk

rpm -qa | grep java

刪除自帶的jdk或者自己安裝的openjdk

rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64

命令介紹：

• rpm：管理套件  
• -e：刪除指定的套件
• --nodeps：不驗(yàn)證套件檔的相互關(guān)聯(lián)性

JDK相關(guān)版本下載

• JDK最新SSL訪問阻斷版本地址
• JDK歷史版本下載地址

安裝

1.將安裝包上傳到服務(wù)器例如 /opt/java 文件夾下

2.解壓

3.配置環(huán)境文件

export JAVA_HOME=/opt/java/jdk1.8.0_281
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:{JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

4.使環(huán)境文件生效

source /etc/profile

總結(jié)

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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