SpringMVC整合JSP

最新推荐文章于 2025-05-30 09:05:58 发布

_bbman

最新推荐文章于 2025-05-30 09:05:58 发布

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文章标签： spring mvc java

本文链接：https://blog.youkuaiyun.com/i5g4nn/article/details/68947770

本文记录了SpringMVC中使用JSP作为视图的配置过程，包括创建webapp工程，配置pom.xml，定义Controller，创建views文件夹及hello.jsp，配置SpringMVC和DispatcherServlet，最后通过mvn tomcat7:run运行项目。

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使用jsp作为视图（其实推荐是使用thymeleaf作为视图的，但是辛苦配置了那么久，还是记录一下吧。。。）

完全基于Java 的配置

工程目录如图

1. 首先用 mvn 创建一个 webapp 工程，使用pom.xml配置项目和依赖

<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.ly</groupId>
  <artifactId>example</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>example Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.3.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.3.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.3.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.3.6.RELEASE</version>
    </dependency>

    <!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.3.6.RELEASE</version>
    </dependency>

    <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>
      <scope>provided</scope>
    </dependency>

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

  </dependencies>

  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat7-maven-plugin</artifactId>
          <version>2.2</version>
        </plugin>
      </plugins>
    </pluginManagement>

    <finalName>example</finalName>
  </build>
</project>

包括springmvc必要的依赖，javax.servlet-api，jstl（一开始不知道要后两个，弄了很久。。）

最后添加 tomcat7 的集成插件

2. 定义一个 controller

package com.ly.web.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * Created by Shower on 2017/4/1 0001.
 */
@Controller
public class HelloController {
    @RequestMapping(value = "/")
    public String sayHello(ModelMap modelMap) {
        modelMap.put("msg", "Hello!");
        return "hello";
    }
}

使用@Controller注解进行配置，@RequestMapping进行地址映射，返回 jsp 模板的名称

3. 在WEB-INF文件夹下创建views文件夹，并在其中创建hello.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Hello World</title>
</head>
<body>
    <h2>Message: ${msg}</h2>
</body>
</html>

4. SpringMVC配置

package com.ly.web;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

/**
 * Created by Shower on 2017/4/1 0001.
 */
@Configuration
@ComponentScan
@EnableWebMvc
public class WebConfig {
    @Bean
    public InternalResourceViewResolver viewResolver() {
        InternalResourceViewResolver viewResolver = new
                InternalResourceViewResolver();
        viewResolver.setViewClass(JstlView.class);
        viewResolver.setPrefix("/WEB-INF/views/");
        viewResolver.setSuffix(".jsp");

        return viewResolver;
    }
}

@Configuration和@Bean一起用来配置Bean，@ComponentScan用来扫描当前包下用注解配置的Bean，@EnableWebMVC启用注解配置SpringMVC

5. 配置DispatcherServlet

package com.ly;

import com.ly.business.BusinessConfig;
import com.ly.web.WebConfig;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

/**
 * Created by Shower on 2017/4/1 0001.
 */
public class AppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] {BusinessConfig.class};
    }

    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[] {WebConfig.class};
    }

    protected String[] getServletMappings() {
        return new String[] {"/"};
    }
}

BusinessConfig.java

package com.ly.business;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;

/**
 * Created by Shower on 2017/4/1 0001.
 */
@Configuration
@ComponentScan
@EnableWebMvc
public class BusinessConfig {
}