java web开发之报错异常笔记（一）

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1. eclipse创建动态web工程后报错(Dynamic Web Project）Java compiler level does not match the version of the...
2. 报错：Project xxx is missing required source folder: 'src/main/resources'
3. Whitelabel Error Page ：This application has no explicit mapping for /error,so you seeing this as a fallback...
4. 报错：The import javax.servlet.http cannot be resolved
5. 不小心移动了目录结构, src/main/java 变成了 java,项目不能运行了