目录引言一、网络相关错误1.ConnectException(连接拒绝/连接超时)2.UnknownHostException(未知主机)二、HTTP状态码错误1. 4xx 客户端错误400 Bad Request (错误请求)401 Unauthorized (未授权)403 Forbidden (禁止访
I\'m writing a web application in which i use several thirdy party c开发者_JAVA百科ommands calling them with the exec function in PHP (for example, I render Latex formulas through a command-line progr
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