Tomcat启动正常，所有页面报404错误
2024-04-16 09:23:03
原
Tomcat正常启动，访问所有页面均报404异常，404异常总结
今天遇到一个问题：Tomcat正常启动，访问所有页面均报404异常
404异常，很常见，大多情况是路径错误、web.xml文件映射路径写错、服务器设置、servlet的jar包未导进去或者没有随项目发布等等。
如果是路径错误，仔细检查即可解决问题。
服务器没设置好也会报这个错误，这一般是新手刚开始学时遇到的问题，就是要把eclipse中的tomcat的server location设置为use tomcat installation，在eclipse界面双击tomcat server见如图设置：
如果是servlet的jar包问题，则通过build path引入jar包，在libraries选项卡添加外部jar文件，并在order and export选项卡中勾选应用，最后在deployment and assessment选项中添加它，表明tomcat发布时将它拷贝到项目下WEB-INF\lib目录中。
而今天我遇到的问题却不是其中任何一个，想想我也没动什么东西，只是修改代码时，想用另外一种方法实现上传功能，不料引入一个jar包又删掉后出现了404的问题，很无奈。
问题出来了是要解决的，折腾半天，终于找到问题所在了：删jar包时不小心把发布所包含的webapp给remove掉了，这就难怪报找不到路径了，见图
好了，问题解决。
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tomcat启动成功但是访问方面都是404
1、开发环境与错误情况 开发环境是jdk1.7+maven+git+spring MVC+spring+mybatis+mysql。
楼主做小例子的时候发现，tomcat成功启动，但是访问主页，页…
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Blck宋： 删除与这个tomcat相关的工程，然后在改，就可以了 我试过(3年前#3楼)举报回复
lds_lsj： 那个Server location怎么是灰色的，改不了！(3年前#2楼)举报回复
过顶擒龙： 还需要将tomcat清理干净后重新启动，要不还是会报异常(5年前#1楼)举报回复
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tomcat 404 问题及解决方法
07-11 3.2万
昨天晚上用tomcat 实验一个小程序，没想到的是一直提示404错误。我已经确认目录下有我的html文件，但仍然是404。今天就总结一下tomcat 404 的几种常见问题及解决方法。... 来自： 冬语的专栏
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项目升级单点登录，只需要改个别配置文件即可完成，…
来自： 大米时代第六期-丁成云
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Eclipse中部署完项目后可以正常启动tomcat，直接访问项目的路径也可以，但是直接访问http://localhost:8080出…
来自： 龙腾四海365的专栏
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