老师您好，我在复现代码的时候，LoginController的/do_login报错
我是先登录成功→然后输入网址http://localhost:8080/login/do_login，就报错了：

rg.springframework.validation.BindException: org.springframework.validation.BeanPropertyBindingResult: 3 errors
Field error in object 'loginVo' on field 'mobile': rejected value [null]; codes [IsMobile.loginVo.mobile,IsMobile.mobile,IsMobile.java.lang.String,IsMobile]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [loginVo.mobile,mobile]; arguments []; default message [mobile],true]; default message [手机号码格式错误]
Field error in object 'loginVo' on field 'password': rejected value [null]; codes [NotNull.loginVo.password,NotNull.password,NotNull.java.lang.String,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [loginVo.password,password]; arguments []; default message [password]]; default message [不能为null]
Field error in object 'loginVo' on field 'mobile': rejected value [null]; codes [NotNull.loginVo.mobile,NotNull.mobile,NotNull.java.lang.String,NotNull]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [loginVo.mobile,mobile]; arguments []; default message [mobile]]; default message [不能为null]
	at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:117) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121) ~[spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:158) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:128) [spring-web-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) [spring-webmvc-4.3.12.RELEASE.jar:4.3.12.RELEASE]