ssm+shiro查询数据库错误导致不能验证登录

ssm的时候没有问题,可是加了shiro之后问题不断

先是dao层定义的方法

public User find(@Param("username") String username);

然后是mapper.xml里对应的sql语句

<select id="find" resultType="com.entity.User">
        select password from user where username=#{username}
    </select>

User层定义了账号和密码两个属性,分别有get与set方法

service层到serviceImpl层的方法是

public User findpassword(String username){
        User user=userDao.find(username);
        return user;
    }

自定义的MyRealm中的doGetAuthenticationInfo方法代码为

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token)  throws AuthenticationException{
        String username=(String)token.getPrincipal();
        User user=ser.findpassword(username);
        if(user==null){
            throw new UnknownAccountException();
        }
        SimpleAuthenticationInfo info=new SimpleAuthenticationInfo(user.getUsername(),user.getPassword(),getName());
        return info;
        }

controller层就不写了,就是调用了subject.login()方法

然后挂到tomcat运行,输入账号密码就会报错

org.apache.shiro.authc.AuthenticationException: Authentication failed for token submission [org.apache.shiro.authc.UsernamePasswordToken - A2, rememberMe=false].  Possible unexpected error? (Typical or expected login exceptions should extend from AuthenticationException).
    at org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:214)
    at org.apache.shiro.mgt.AuthenticatingSecurityManager.authenticate(AuthenticatingSecurityManager.java:106)
    at org.apache.shiro.mgt.DefaultSecurityManager.login(DefaultSecurityManager.java:270)
    at org.apache.shiro.subject.support.DelegatingSubject.login(DelegatingSubject.java:256)
    at com.controller.controller_.checkLogin(controller_.java:33)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:745)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:685)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:855)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:230)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
    at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
    at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
    at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
    at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:383)
    at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
    at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)

    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:474)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:624)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:789)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1437)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.ibatis.builder.IncompleteElementException: Could not find result map com.dao.UserDao.String
    at org.apache.ibatis.builder.MapperBuilderAssistant.setStatementResultMap(MapperBuilderAssistant.java:358)
    at org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:296)
    at org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:109)
    at org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:718)
    at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:688)
    at org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:683)
    at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:183)
    at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:44)
    at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:59)
    at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
    at com.sun.proxy.$Proxy19.find(Unknown Source)
    at com.service.serviceImpl.findpassword(serviceImpl.java:22)
    at com.shiro.realm.MyRealm.doGetAuthenticationInfo(MyRealm.java:45)
    at org.apache.shiro.realm.AuthenticatingRealm.getAuthenticationInfo(AuthenticatingRealm.java:568)
    at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doSingleRealmAuthentication(ModularRealmAuthenticator.java:180)
    at org.apache.shiro.authc.pam.ModularRealmAuthenticator.doAuthenticate(ModularRealmAuthenticator.java:267)
    at org.apache.shiro.authc.AbstractAuthenticator.authenticate(AbstractAuthenticator.java:198)
    ... 58 more
Caused by: java.lang.IllegalArgumentException: Result Maps collection does not contain value for com.dao.UserDao.String
    at org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:818)

    at org.apache.ibatis.session.Configuration.getResultMap(Configuration.java:570)
    at org.apache.ibatis.builder.MapperBuilderAssistant.setStatementResultMap(MapperBuilderAssistant.java:356)
    ... 74 more

百度看了下,大概的意思是我的查询数据库那一步出现问题了,好像是mybatis返回查询结果的时候出错,但我不会怎么改这里,有没有有类似经历的哥哥帮解决一下,Please

2个回答

说出来有点弱智,这种莫名其妙确定了没有代码和逻辑错误还报错的话,我新建一个web项目重新打代码编译就可以运行了,有点无语

这里的查询方法只查询了一个密码字段,但是却用了 User 类型接收,换种方式,resultType 用字符串或者查询表的全部字段。

<select id="findByUserName" resultType="string">
        select password from user where username=#{username}
    </select>

另外确定下你应该调用哪个方法 findByUserName 还是 find() 没有看到 find 接口对应的 sql 语句。

qq_42862184
qq_42862184 你的方法我也试了一下,把resultType改成String,可是也没有成功,感觉很奇怪
5 个月之前 回复
qq_42862184
qq_42862184 这句查询语句是我复制错了,正确的是<select id="find" resultType="com.entity.User"> select password from user where username=#{username} </select>
5 个月之前 回复
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