Spring MVC: cannot find other html files

Question

Why the link http://localhost:8080/demo00/user/ didn't work, saying 404, how to fix it? My website project structure: website structure

pom.xml:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.demo</groupId>
    <artifactId>demo00</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo00 Maven Webapp</name>
    <url>http://maven.apache.org</url>

    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
    </properties>

    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
        </dependency>

        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>1.4.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>4.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>4.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>4.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>4.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>4.2.6.RELEASE</version>
        </dependency>


        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.36</version>
        </dependency>


        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.10</version>
        </dependency>

        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.3</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>4.1.0.Final</version>
        </dependency>

        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <version>1.0.0.Final</version>
        </dependency>

        <dependency>
            <groupId>org.jsoup</groupId>
            <artifactId>jsoup</artifactId>
            <version>1.9.2</version>
        </dependency>

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
    </dependencies>
    <build>
        <finalName>demo00</finalName>
    </build>
</project>

web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    id="WebApp_ID" version="3.1">
    <display-name>Archetype Created Web Application</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>

    <context-param>
        <param-name>ApplicationContext</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

spring-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:context="http://www.springframework.org/schema/context"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="
   http://www.springframework.org/schema/beans     
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/context 
   http://www.springframework.org/schema/context/spring-context-3.0.xsd">

   <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
      <property name="prefix" value="/view/" />
      <property name="suffix" value=".html" />
   </bean>

</beans>

applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <!-- Enable @Autowired -->
    <context:component-scan base-package="com" />
    <context:annotation-config />

    <mvc:annotation-driven /> 

    <mvc:resources mapping="/resources/**" location="/resources/" />
    <mvc:resources mapping="/view/**" location="/view/" />
    <mvc:resources mapping="/img/**" location="/img/" />
    <mvc:resources mapping="/fonts/**" location="/fonts/" />
    <mvc:resources mapping="/css/**" location="/css/" />
    <mvc:resources mapping="/js/**" location="/js/" />

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/demo576" />
        <property name="username" value="root" />
        <property name="password" value="123456" />
    </bean>

    <!-- Session Factory Declaration -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="com.demo.model" />
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.enable_lazy_load_no_trans">true</prop>
                <prop key="hibernate.default_schema">demo576</prop>
                <prop key="format_sql">true</prop>
                <prop key="use_sql_comments">true</prop>
                <!-- <prop key="hibernate.hbm2ddl.auto">create</prop> -->
            </props>
        </property>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager" />

     <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

user.html:

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>User</title>
</head>
<body>
    <h1>Hello User!</h1>
</body>
</html>

UserController.java:

package com.demo.controller;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.demo.model.User;
import com.demo.service.UserService;

@Controller
@RequestMapping("user")
public class UserController {

    @Autowired
    UserService userServices;

    @RequestMapping(value = "/", method = RequestMethod.GET)
    public ModelAndView get() {
        ModelAndView view = new ModelAndView("user");
        return view;
    }

    @RequestMapping(value = "/saveOrUpdate", method = RequestMethod.POST)
    public @ResponseBody Map<String, Object> saveOrUpdate(User user) {
        Map<String, Object> map = new HashMap<String, Object>();

        if (userServices.saveOrUpdate(user)) {
            map.put("status", "200");
            map.put("message", "Your record have been saved successfully");
        }

        return map;
    }

    @RequestMapping(value = "/list", method = RequestMethod.POST)
    public @ResponseBody Map<String, Object> list(User user) {
        Map<String, Object> map = new HashMap<String, Object>();

        List<User> list = userServices.list();

        if (list != null) {
            map.put("status", "200");
            map.put("message", "Data found");
            map.put("data", list);
        } else {
            map.put("status", "404");
            map.put("message", "Data not found");

        }

        return map;
    }

    @RequestMapping(value = "/delete", method = RequestMethod.POST)
    public @ResponseBody Map<String, Object> delete(User user) {
        Map<String, Object> map = new HashMap<String, Object>();

        if (userServices.delete(user)) {
            map.put("status", "200");
            map.put("message", "Your record have been deleted successfully");
        }

        return map;
    }
}

I followed some tutorials step by step, but cannot figure out what's wrong here. I am using Eclipse Neon + Tomcat 8 + Java 1.8 in Windows 10. Please help, thanks in advance.

If there are improper codes or structures, please also point out.

EDIT: I changed some xml and java files according to following suggestions, and uploaded the demo project to https://www.dropbox.com/s/k0rahvz4u29jzey/demo00-160828-url-does-no-work.zip?dl=0, please have a check if possible. Thanks.

Link localhost:8080/demo00 works and shows the content of index.jsp — J.W
– J.W, Commented Aug 27, 2016 at 5:42
Do you mind to change @RequestMapping("user") to @RequestMapping("/user") and test again? — Khoda
– Khoda, Commented Aug 27, 2016 at 6:19
I changed @RequestMapping("user") to @RequestMapping("/user") in UserController.java, but still didn't work. — J.W
– J.W, Commented Aug 27, 2016 at 7:01

Community · Accepted Answer · 2017-05-23 12:08:31Z

Problem is your applicationContext.xml is not scanned at time of application bootup which eventually throws 404 for all the resources defined in applicationContext.xml. To make context load add file as part of contextConfigLocation in web.xml, as follows:

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    id="WebApp_ID" version="3.1">
    <display-name>Archetype Created Web Application</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/applicationContext.xml, /WEB-INF/spring-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

Next, remove mvc:resources from applicationContext.xml and add <mvc:default-servlet-handler/> and as you are using Spring 4 do update the schema location to Spring 4 rather than Spring 3, as follows:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:context="http://www.springframework.org/schema/context"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans
    http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.0.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

    <!-- Enable @Autowired -->
    <context:component-scan base-package="com" />
    <context:annotation-config />

    <mvc:annotation-driven />
    <mvc:default-servlet-handler/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/demo576" />
        <property name="username" value="root" />
        <property name="password" value="123456" />
    </bean>

    <!-- Session Factory Declaration -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="packagesToScan" value="com.demo.model" />
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.enable_lazy_load_no_trans">true</prop>
                <prop key="hibernate.default_schema">demo576</prop>
                <prop key="format_sql">true</prop>
                <prop key="use_sql_comments">true</prop>
                <!-- <prop key="hibernate.hbm2ddl.auto">create</prop> -->
            </props>
        </property>
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager" />

     <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

</beans>

If you want to know more about <mvc:default-servlet-handler />, checkout my answer here.

Besides above changes, provide unique @RequestMapping url in UserController.java otherwise it will throw Circular view path exception, I modified @RequestMapping at class level to /users to avoid the same, as follows:

@Controller
@RequestMapping("/users")
public class UserController {

@RequestMapping(value = "", method = RequestMethod.GET)
 public ModelAndView get() {
    ModelAndView view = new ModelAndView("user");
    return view;
 }
}

Now, opening the http://localhost:8080/demo00/users should display user.html page as below:

Tested, but didn't work. I uploaded this demo on dropbox.com/s/k0rahvz4u29jzey/… if possible, please have a check. Thanks.
Wow...you did it! Thank you so much :) I still have a question, you modified @RequestMapping at class level to /users to avoid the same. The same as what? I tried /user and http://localhost:8080/demo00/user works too, no Circular view path exception happened.
@J.W: By same I mean Circular view path exception. As @RequestMapping("/user") public class UserController and ModelAndView view = new ModelAndView("user"); return view; calls the same url /user.

rajat · Accepted Answer · 2016-08-27 06:36:02Z

0

I suggest you some changes in your project structure and .xml files.

1) you should keep view folder in WEB-INF folder.

2) you can remove these mappings :-

<mvc:resources mapping="/view/**" location="/view/" />
<mvc:resources mapping="/img/**" location="/img/" />
<mvc:resources mapping="/fonts/**" location="/fonts/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/js/**" location="/js/" />

3) use this

property name="prefix" value="/WEB-INF/view/"

instead of this

property name="prefix" value="/view/"

answered Aug 27, 2016 at 6:36

rajat

11 bronze badge

2 Comments

J.W Over a year ago

Thanks. And how about css, js, img, and fonts folders, where should they go?

rajat Over a year ago

no need to change path of these folder. These folders always should be outside of WEB-INF.

Mr. Robot · Accepted Answer · 2016-08-27 07:47:39Z

0

you can put css, js, img, and fonts folders at one location in webapps/resources and make this below entry in app context file :

  <mvc:resources mapping="/resources/**" location="/resources/"
    cache-period="31556926" />

And you can remove below lines in you app context file :

<mvc:resources mapping="/view/**" location="/view/" />
<mvc:resources mapping="/img/**" location="/img/" />
<mvc:resources mapping="/fonts/**" location="/fonts/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/js/**" location="/js/" />

Secondly put you view folded in WEB-INF and change entry in your app context file :

       <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/view/</value>
        </property>
        <property name="suffix">
            <value>.html</value>
        </property>
    </bean>

And lastly you can write your controller like this for default get method : No need to use value attribute as you are not giving any other url here .

  @RequestMapping( method = RequestMethod.GET)
    public ModelAndView get() {
        ModelAndView view = new ModelAndView("user");
        return view;
    }

then you can hit :

  http://localhost:8080/demo00/user

answered Aug 27, 2016 at 7:47

Mr. Robot

1866 bronze badges

1 Comment

J.W Over a year ago

Tried, the link still didn't work. But your suggestions are making the code structure more proper and readable. Thanks.

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