SpringMVC4 实例

之前我先创建普通web项目，再直接添加maven框架。结果springMVC框架一直不能正确的访问控制器。

但通过以下方式创建maven web项目就能获得正确的架构路径。

1、新建一个maven项目，并创建webapp骨架。

2、点击项目结构按钮

3、将java文件夹设置成sources目录

4、最后配置poem.xml文件：

<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>java-springmvc-demo5</groupId>

  <artifactId>java-springmvc-demo5</artifactId>

  <packaging>war</packaging>

  <version>1.0-SNAPSHOT</version>

  <name>java-springmvc-demo5 Maven Webapp</name>

  <url>http://maven.apache.org</url>

  <!--项目依赖 -->

  <dependencies>

    <!--日志包-->

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>3.8.1</version>

      <scope>test</scope>

    </dependency>

    <dependency>

      <groupId>org.slf4j</groupId>

      <artifactId>slf4j-log4j12</artifactId>

      <version>1.7.21</version>

    </dependency>

    <!--j2ee相关包 servlet、jsp、jstl-->

    <dependency>

      <groupId>javax.servlet</groupId>

      <artifactId>javax.servlet-api</artifactId>

      <version>3.1.0</version>

    </dependency>

    <dependency>

      <groupId>javax.servlet.jsp</groupId>

      <artifactId>jsp-api</artifactId>

      <version>2.2</version>

    </dependency>

    <dependency>

      <groupId>javax.servlet</groupId>

      <artifactId>jstl</artifactId>

      <version>1.2</version>

    </dependency>

    <!--spring相关包-->

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-web</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <dependency>

      <groupId>org.springframework</groupId>

      <artifactId>spring-webmvc</artifactId>

      <version>4.3.1.RELEASE</version>

    </dependency>

    <!--其他需要的包-->

    <dependency>

      <groupId>org.apache.commons</groupId>

      <artifactId>commons-lang3</artifactId>

      <version>3.4</version>

    </dependency>

    <dependency>

      <groupId>commons-fileupload</groupId>

      <artifactId>commons-fileupload</artifactId>

      <version>1.3.1</version>

    </dependency>

  </dependencies>

  <build>

    <finalName>maven-springmvc</finalName>

    <resources>

      <!--表示把java目录下的有关xml文件,properties文件编译/打包的时候放在resource目录下-->

      <resource>

        <directory>${basedir}/src/main/java</directory>

        <includes>

          <include>**/*.properties</include>

          <include>**/*.xml</include>

        </includes>

      </resource>

      <resource>

        <directory>${basedir}/src/main/resources</directory>

      </resource>

    </resources>

    <plugins>

      <!--servlet容器 jetty插件-->

      <plugin>

        <groupId>org.eclipse.jetty</groupId>

        <artifactId>jetty-maven-plugin</artifactId>

        <version>9.3.10.v20160621</version>

      </plugin>

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-compiler-plugin</artifactId>

        <configuration>

          <source>1.6</source>

          <target>1.6</target>

        </configuration>

      </plugin>

    </plugins>

  </build>

</project>

整个pringMVC项目结构如下：

web.xml：

<?xml version="1.0" encoding="UTF-8"?>

<web-app id="WebApp_ID" version="2.5"

    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

    xmlns="http://java.sun.com/xml/ns/javaee"

    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

                        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  <display-name>java-springmvc-demo5</display-name>

  <servlet>

      <servlet-name>SpringMVC</servlet-name>

      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <!-- 默认的servlet.xml文件是放在WEB-INF目录下，名称与<servlet-name>的名字要相关。但可以通过以下设置重新自定义servlet.xml配置文件的位置和名称。-->

      <!--<init-param>-->

       <!--<param-name>contextConfigLocation</param-name>-->

       <!--<param-value>/WEB-INF/SpringMVC-servlet.xml</param-value>-->

      <!--</init-param>-->

    <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

      <servlet-name>SpringMVC</servlet-name>

      <url-pattern>/</url-pattern>

  </servlet-mapping>

    <!--欢迎页面-->

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

</web-app>

SpringMVC-servlet.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:p="http://www.springframework.org/schema/p"

    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/context

        http://www.springframework.org/schema/context/spring-context.xsd

        http://www.springframework.org/schema/mvc

        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <bean name="/hello" class="com.example.controller.HelloController"></bean>

    <bean id="viewResolver"

        class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/"></property>

        <property name="suffix" value=".jsp"></property>

    </bean>

</beans>

HelloController.java：

package com.example.controller;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class HelloController implements Controller {

    @Override

    public ModelAndView handleRequest(HttpServletRequest arg0,HttpServletResponse arg1) throws Exception {

        //跳转到hello_word.jsp页面

        return new ModelAndView("hello_word");

    }

}

流程：

通过“http://localhost:8080/”路径访问的是欢迎页面index.jsp。

通过“http://localhost:8080/hello”路径访问的是HelloController控制器，再通过控制器访问到hello_word.jsp页面。

巴特西

SpringMVC4 实例

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