请提供具体的错误信息

以上为错误1

2018-3-26 12:25:51 org.apache.catalina.startup.HostConfig reload

信息: Reloading context [/bbs]

2018-3-26 12:25:51 org.apache.catalina.core.StandardContext reload

信息: Reloading Context with name [/bbs] has started

2018-3-26 12:25:51 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc

严重: The web application [/bbs] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

2018-3-26 12:25:51 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesThreads

严重: The web application [/bbs] appears to have started a thread named [MySQL Statement Cancellation Timer] but has failed to stop it. This is very likely to create a memory leak.

2018-3-26 12:25:51 org.apache.catalina.loader.WebappClassLoaderBase validateJarFile

信息: validateJarFile(D:\Tomcat 7.0\webapps\bbs\WEB-INF\lib\javaee.jar) - jar not loaded. See Servlet Spec 3.0, section 10.7.2. Offending class: javax/servlet/Servlet.class

2018-3-26 12:25:52 org.apache.catalina.startup.TldConfig execute

信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.

2018-3-26 12:25:52 org.apache.struts.util.PropertyMessageResources <init>

信息: Initializing, config='org.apache.struts.util.LocalStrings', returnNull=true

2018-3-26 12:25:52 org.apache.struts.util.PropertyMessageResources <init>

信息: Initializing, config='org.apache.struts.action.ActionResources', returnNull=true

2018-3-26 12:25:52 org.apache.struts.util.PropertyMessageResources <init>

信息: Initializing, config='com.wsy.struts.ApplicationResources_zh_CN', returnNull=true

2018-3-26 12:25:53 org.apache.catalina.core.StandardContext reload

信息: Reloading Context with name [/bbs] is completed

1. 这个是警告，不是错误。

2. 数据库驱动已被注册，可是因为你重复启动程序引起的。

3. 404表示页面不存在。既然你的项目中已经大量抛出编译错误，运行之后肯定会导致服务器启动失败。

怀疑你以上错误是项目没引入server库导致的。你看一下项目以前使用的的server库是什么版本，然后你把server库改成你自己的开发环境版本。

注释都变成乱码  如何处理？？

项目上鼠标右键 - Properties - Resource ，在Text file encoding中试试UTF-8或GBK

谢谢老师