Question

我是Spring MVC的新手。请原谅这是一个愚蠢的问题，我自己尝试了很多，但无法解决

我面临的问题是我的控制器永远不会被称为

这是代码

的index.jsp

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<form action="/hello.html" method="post">  
Name:<input type="text" name="name"/><br/>  
Password:<input type="password" name="password"/><br/>  
<input type="submit" value="login"/>  
</form>  

</body>
</html>

dispatcher-servlet.xml

 <context:component-scan base-package="com.javatpoint" />
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
        <property name="prefix" value="/WEB-INF/jsp/" />  
        <property name="suffix" value=".jsp" />  
    </bean>

hellopage.jsp

Message is: ${message}

的errorPage.jsp

${message}  
<jsp:include page="/index.jsp"></jsp:include>

HelloWorldController.java

@Controller  
public class HelloWorldController {  

    @RequestMapping("/hello")  
    public ModelAndView helloWorld(HttpServletRequest request,HttpServletResponse res) {  
        String name=request.getParameter("name");  
        String password=request.getParameter("password");  

        System.out.println("The Name is"+name);
        System.out.println("The password is"+password);

        if(password.equals("admin")){  
        String message = "HELLO "+name;  
        return new ModelAndView("hellopage", "message", message);  
        }  
        else{  
            return new ModelAndView("errorpage", "message","Sorry, username or password error");  
        }  
    }  

}

的web.xml

<servlet>  
<servlet-name>dispatcher</servlet-name>  
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  
<load-on-startup>1</load-on-startup>  
</servlet>  
<servlet-mapping>  
<servlet-name>dispatcher</servlet-name>  
<url-pattern>*.html</url-pattern>  
</servlet-mapping>  
</web-app>

Answer 1

在表单操作中包含您的应用上下文路径：

<form action="${pageContext.request.contextPath}/hello.html" method="post">

Answer 2

尝试将表单的操作从/hello.html更改为/hello，因为您在控制器中拥有的内容@RequestMapping

在Spring MVC中没有调用Controller

2 个答案: