搭建SSM小demo,運行的時候頁面顯示如下500錯誤：

HTTP狀態 500 - 內部服務器錯誤

類型 異常報告

消息 Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.kuang.dao.BookMapper.queryAllBook

描述 服務器遇到一個意外的情況，阻止它完成請求。

例外情況

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.kuang.dao.BookMapper.queryAllBook

org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1013)

org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)

javax.servlet.http.HttpServlet.service(HttpServlet.java:626)

org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)

javax.servlet.http.HttpServlet.service(HttpServlet.java:733)

org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)

根本原因。

org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.kuang.dao.BookMapper.queryAllBook

org.apache.ibatis.binding.MapperMethod$SqlCommand.(MapperMethod.java:235)

org.apache.ibatis.binding.MapperMethod.(MapperMethod.java:53)

org.apache.ibatis.binding.MapperProxy.lambda$cachedMapperMethod$0(MapperProxy.java:61)

java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660)

org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:61)

org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:56)

com.sun.proxy.$Proxy17.queryAllBook(Unknown Source)

com.kuang.service.BookServiceImpl.queryAllBook(BookServiceImpl.java:35)

com.kuang.controller.BookController.list(BookController.java:25)

sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

java.lang.reflect.Method.invoke(Method.java:498)

org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190)

org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138)

org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)

org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:892)

org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)

org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)

org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)

org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)

org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)

org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:897)

javax.servlet.http.HttpServlet.service(HttpServlet.java:626)

org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)

javax.servlet.http.HttpServlet.service(HttpServlet.java:733)

org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)

):注意 主要問題的全部 stack 信息可以在 server logs 里查看

Apache Tomcat/8.5.61

解決方式如下：

1.在pom.xml文件里面加入下面這段代碼：

UTF-8

2.其次到idea右側的maven中的Lifecycle目錄下點擊clean，然后再點擊一下install，

以上兩步驟弄好之后可以重新啟動項目試一試，看看能不能行，不行也沒關系，到別的

博客試試別的方法。

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