spring4学习记录03-spring mvc实战之框架构建

目的

构建spring+springmvc+springDataJpa+shiro完成一个简单的Demo

本章目标

新建一个maven web项目，集成spring+springmvc
新建一个contorller 请求控制层 传递一个参数，并且在jsp显示

项目构建

新建java项目(这里建立的是maven项目)

一直next

项目进行编辑

选中项目右键进行编辑，选中3.0版本,jdk1.7,或者更高这里用的myeclipse2013 选不了1.8

修改pom文件引入插件

<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>4.0.0modelVersion>
  <groupId>com.jxgroupId>
  <artifactId>springinactionartifactId>
  <packaging>warpackaging>
  <version>0.0.1-SNAPSHOTversion>
  <name>springinaction Maven Webappname>
  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>4.12version>
      <scope>testscope>
    dependency>
  dependencies>
  <build>
    <finalName>springinactionfinalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.pluginsgroupId>
            <artifactId>maven-compiler-pluginartifactId>
            <version>2.3.2version>
            <configuration>
                <source>1.7source>
                <target>1.7target>
            configuration>
        plugin>
    plugins>
  build>
project>

上面是修改好的pom文件内容：1 引入编译插件 2 junit改成了4.12版本

这个时候项目可能报错,那么选中项目 右键，maven -> update一下就好了.

测试项目

发布项目到tomcat，启动tomcat，浏览器访问 项目 能够看到 hello world即可.

到此 一个最基本的 maven web项目就完成了.

引入spring+springmvc

修改pom文件引入jar

加入properties节点

这里加入全局的来控制spring版本和项目构建编码

    <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <spring-version>4.3.6.RELEASEspring-version>
    properties>

加入spring依赖jar包

下面图示是spring下载下来的所有jar包

http://repo.spring.io/release/org/springframework/spring/ 这里是spring的下载地址
这里不引入这么多，先引入最基本的jar包

        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-coreartifactId>
            <version>${spring-version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-beansartifactId>
            <version>${spring-version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-contextartifactId>
            <version>${spring-version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-expressionartifactId>
            <version>${spring-version}version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>${spring-version}version>
        dependency>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webartifactId>
            <version>${spring-version}version>
        dependency>
        
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>${spring-version}version>
        dependency>
        
        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>javax.servlet-apiartifactId>
            <version>3.0.1version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>javaxgroupId>
            <artifactId>javaee-apiartifactId>
            <version>7.0version>
            <scope>providedscope>
        dependency>
        <dependency>
            <groupId>taglibsgroupId>
            <artifactId>standardartifactId>
            <version>1.1.2version>
        dependency>

配置web.xml

web3.0之后开始支持不需要web.xml，直接在Java类中通过继承AbstractAnnotationConfigDispatcherServletInitializer 覆盖几个方法来进行配置web项目这里不做说明

最开始的web.xml如图

修改为

<web-app 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_3_0.xsd"
        version="3.0">


  <display-name>springinactiondisplay-name>


  
  <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
  listener>
  <context-param>
      <param-name>contextConfigLocationparam-name>
      
      <param-value>classpath:applicationContext.xmlparam-value>
  context-param>

  
  <servlet>
      <servlet-name>springmvcservlet-name>
      <servlet-class>org.springframework.web.servlet.DispatcherServlet
      servlet-class>
      <init-param>
          <param-name>contextConfigLocationparam-name>
          
          <param-value>classpath:spring-mvc.xmlparam-value>
      init-param>
      <load-on-startup>1load-on-startup>
   servlet>
   <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>/url-pattern>
   servlet-mapping>



   
   <filter>
       <filter-name>CharEncodingfilter-name>
       <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
       <async-supported>trueasync-supported>
       <init-param>
           <param-name>encodingparam-name>
           <param-value>UTF-8param-value>
       init-param>
       <init-param>
           <param-name>forceEncodingparam-name>
           <param-value>trueparam-value>
       init-param>
   filter>
   <filter-mapping>
       <filter-name>CharEncodingfilter-name>
       <url-pattern>/*url-pattern>
   filter-mapping>

web-app>

配置spring核心配置文件

新建结构

最开始的目录结构

加上test 和 Java (如果不会再myeclipse中建立，那么去外面的文件夹建立然后刷新项目)

src/main/java 放Java代码
src/main/resources 放配置文件
src/main/test 放测试类
src/main/webapp 放jsp ，js，css等

配置spring的配置文件applicationContext.xml

  
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context" 
       xsi:schemaLocation="
          http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
          http://www.springframework.org/schema/context    
      http://www.springframework.org/schema/context/spring-context-4.2.xsd    
          ">

beans>

配置spring-mvc配置文件spring-mvc.xml

<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"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="
       http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.2.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd">

    
    <mvc:annotation-driven/>

    
    <context:component-scan base-package="com.jx.springinaction.controllers">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    context:component-scan>
    
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/">property>
        <property name="suffix" value=".jsp">property>  
    bean>

beans>

新建HomeController控制器

package com.jx.springinaction.controllers;

import javax.servlet.http.HttpServletRequest;

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

@Controller
@RequestMapping("/")
public class HomeController {

    @RequestMapping("home")
    public String home(String name , HttpServletRequest request){
        System.out.println("hello " + name);
        request.setAttribute("name", name);
        return "home";
    }

}

新建home.jsp

在WEB-INF下新建文件夹views,然后在建立home.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>


<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'home.jsp' starting pagetitle>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    

  head>

  <body>
    Tmy name is ${name}
  body>
html>

测试

启动tomcat，浏览器输入请求