我在将Fiddler作为Java应用的代理时，在使用Java代码连接Fiddler时遇到了SSL证书相关的错误：
liavax.net.ssl. SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building faiat sun. security.ssl.Alerts.getSSLException(Alerts.java:192) at sun. security.ssl. SSLSocketImpl. fatal(SSLSocketImpl. java:1949) at sun. security.ssl.Handshaker. fatalSE(Handshaker. java: 302) at sun. security. ssl. Handshaker.fatalSE(Handshaker. java: 296) at sun.security.ssl.ClientHandshaker.serverCertificate(clientHandshaker.java:1506) at sun.security.ssl.clientHandshaker.processMessage(clientHandshaker. java:216) at sun. security.ssl.Handshaker.processLoop(Handshaker.java:979) at sun. security.ssl.Handshaker.process_record(Handshaker. java:914) at sun. security.ssl. SSLSocketImpl.readRecord(SSLSocketImpl. java: 1062) at sun. security. ssl. SSLSocketImpl.performInitialHandshake(SSLSocketImpl. java:1375) at sun. security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403) at sun. security. ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387) at org. apache.http.conn. ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketat org. apache.http.impl.conn.DefaultHttpclientConnection0perator.upgrade(DefaultHttpclientConiat org. apache.http.impl. conn.PoolingHttpclientConnectionManager.upgrade(PoolingHttpclientConne
解决的办法：
从localhost:8888打开Fiddler Echo Service，点击FiddlerRoot certificate，将安全证书下载到本地，
然后用软件Portecle打开JDK的cacerts证书库，将Fiddler的证书导入即可。
当然不使用Portecle，直接用命令行也是可以的。导入之后，Java应用发送的请求，就能成功被Fiddler接收到了。
