【tomcat報錯】A child container failed during start
當我遇到這個問題的時候，我的環境是這樣的
- 使用maven作為基礎架構
- 新增了一些常用的jar包
- 使用tomcat
然後在執行tomcat的過程中發現遇到了下面的報錯（節選）
嚴重: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/testcs_dn-admin-web]] 當我百度&Google之後，發現同類錯誤大部分是由於jar包丟失（找不到）引起的，所以我找到eclipse下的tomcat執行目錄下找到部署的專案，在web-inf資料夾中，果然沒有發現maven相關的包。目錄地址如下：
\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps然後，我在web的build-path中，找到依賴，將maven相關jar包加入其中，再次執行程式，就好了
步驟如下：
- 找到buildPath
2. 新增依賴
找到maven相關依賴，點選加入，然後儲存即可
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