一步步学java框架之Spring-SpringMVC-Hibernate在idea的使用(二)

本专题主要学习Spring-SpringMVC-Hibernate的使用，作者我也是最近开始学习java框架，所以有什么错的请提出。

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上一章，我们完成了整个工程的创建，这一章我们主要学习springmvc上的一些配置

我们先来看工程的目录

先来看pom.xml文件，这个文件是maven的核心文件，我们需要用个到的包都要在这里配置。

<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.my.sshgroupId>
  <artifactId>sshartifactId>
  <packaging>warpackaging>
  <version>1.0-SNAPSHOTversion>
  <name>ssh Maven Webappname>
  <url>http://maven.apache.orgurl>
  <properties>
    
    <spring.version>4.0.4.RELEASEspring.version>
    <hibernate.version>4.3.5.Finalhibernate.version>
  properties>
  <dependencies>
    <dependency>
      <groupId>junitgroupId>
      <artifactId>junitartifactId>
      <version>3.8.1version>
      <scope>testscope>
    dependency>
    <dependency>
      
      
      
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-webmvcartifactId>
      <version>${spring.version}version>
    dependency>
    
    
    <dependency>
      <groupId>javax.servlet.jsp.jstlgroupId>
      <artifactId>javax.servlet.jsp.jstl-apiartifactId>
      <version>1.2.1version>
    dependency>
    <dependency>
      <groupId>taglibsgroupId>
      <artifactId>standardartifactId>
      <version>1.1.2version>
    dependency>

    <dependency>
      <groupId>tomcatgroupId>
      <artifactId>servlet-apiartifactId>
      <version>5.5.23version>
      <scope>providedscope>
    dependency>
    <dependency>
      <groupId>tomcatgroupId>
      <artifactId>jsp-apiartifactId>
      <version>5.5.23version>
      <scope>providedscope>
    dependency>
    
    <dependency>
      <groupId>commons-fileuploadgroupId>
      <artifactId>commons-fileuploadartifactId>
      <version>1.3.1version>
    dependency>
    
    <dependency>
      <groupId>org.hibernategroupId>
      <artifactId>hibernate-validatorartifactId>
      <version>5.1.2.Finalversion>
    dependency>
    
    <dependency>
      <groupId>org.codehaus.jacksongroupId>
      <artifactId>jackson-mapper-aslartifactId>
      <version>1.9.13version>
    dependency>

    <dependency>
      <groupId>org.springframeworkgroupId>
      <artifactId>spring-ormartifactId>
      <version>${spring.version}version>
    dependency>
    
    <dependency>
      <groupId>org.hibernategroupId>
      <artifactId>hibernate-coreartifactId>
      <version>${hibernate.version}version>
    dependency>

    <dependency>
      <groupId>c3p0groupId>
      <artifactId>c3p0artifactId>
      <version>0.9.1.2version>
    dependency>
    
    <dependency>
      <groupId>mysqlgroupId>
      <artifactId>mysql-connector-javaartifactId>
      <version>5.1.31version>
    dependency>
  dependencies>
  <build>
    <finalName>sshfinalName>
  build>
project>

接着再配置web.xml文件

我们要替换web.xml。在Spring MVC中配置DispatchServlet，该类是 Spring MVC的核心类(该类具体作用请参考Spring MVC相关文档)。也就是在容器启动的时候就要初始化该类，并且配置相应的参数。

之前我们的web.xml中对DispatchServlet的配置如下：

<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"
         metadata-complete="true" version="3.0">

  <servlet>
    <servlet-name>spring-dispatcherservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
  servlet>
  
  <servlet-mapping>
    <servlet-name>spring-dispatcherservlet-name>
    <url-pattern>/url-pattern>
  servlet-mapping>

web-app>

Spring MVC 配置文件 web.xml文件详解

与web.xml同路径下创建spring-dispatcher-servlet.xml如下：

<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"
         metadata-complete="true" version="3.0">

  <servlet>
    <servlet-name>spring-dispatcherservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
  servlet>
  
  <servlet-mapping>
    <servlet-name>spring-dispatcherservlet-name>
    <url-pattern>/url-pattern>
  servlet-mapping>

web-app>

Spring MVC 配置文件dispatcher-servlet.xml 文件详解