01基于配置文件方式的SpringMVC，三种HandlerMapping，三种控制器



1 添加Spring MVC所需的jar包.



2 创建一个以下项目结构的springmvc项目



3 web.xml的配置如下：

<?xmlversion="1.0"encoding="UTF-8"?> <web-appversion="3.0"    xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee    http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">        <servlet>        <servlet-name>springmvc</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    </servlet>    <servlet-mapping>        <servlet-name>springmvc</servlet-name>        <!--structs用/*，springmvc不能是/*类型，要是*.xxx类型 -->        <url-pattern>*.do</url-pattern>    </servlet-mapping> </web-app>

4 springmvc-servlet.xml的配置，这里的springmvc-servlet.xml名字默认是web.xml文件中的“映射名称”+“-”+“servlet”+”.xml”文件。

<?xmlversion="1.0"encoding="UTF-8"?> <beansxmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:mvc="http://www.springframework.org/schema/mvc"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx"    xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd        http://www.springframework.org/schema/mvc        http://www.springframework.org/schema/mvc/spring-mvc-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/aop        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd        http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx-3.0.xsd ">      <!--    如果不配置映射处理器会采用默认的映射处理器BeanNameHandlerMapping    下面可以通过：http://localhost:8080/springmvc/hello.do来访问    -->    <beanid="testController"name="/hello.do"class="com.rl.controller.TestController"/>      <!--定义视图解析器 -->    <bean    class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <propertyname="prefix"value="/WEB-INF/jsp/"></property>        <propertyname="suffix"value=".jsp"></property>    </bean>      <beanclass="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">        <propertyname="mappings">            <props>                <!--通过：http://localhost:8080/springmvc/hello1.do可以访问 -->                <propkey="/hello1.do">testController</prop>                <!--通过：http://localhost:8080/springmvc/toIndexBean.do可以访问 -->                <propkey="/toIndexBean.do">toIndexBean</prop>            </props>        </property>    </bean>      <bean    class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"></bean>    <!--使用Controller的类名的首字符小写加.do -->    <bean    class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"></bean>      <beanid="toIndexBean"name="/toIndex.do"    class="org.springframework.web.servlet.mvc.ParameterizableViewController">        <!--也需要使用视图解析器来解析 -->        <propertyname="viewName"value="jsp1/index"></property>    </bean>    <!--通过:http://localhost:8080/springmvc/toIndex1.do访问 -->    <beanname="/toIndex1.do"    class="org.springframework.web.servlet.mvc.ParameterizableViewController">        <!--            也需要使用视图解析器来解析,下面的实际访问的是地址是：            上面的prefix +下面的value +上面的suffix        -->        <propertyname="viewName"value="jsp1/index"></property>    </bean>        <!--    访问方式是：http://localhost:8080/springmvc/comm.do?id=2&name=toto&XXXXX=方式    在控制台可以看到输出结果    -->    <beanname="/comm.do"class="com.rl.controller.CommController">        <!--指定Controller中的object类型的参数上的数据类型 -->        <propertyname="commandClass"value="com.rl.model.Person"></property>    </bean>        <!--    这种可以做简单的类型转换，如果数据类型不一致，它会返回到页面中    访问路径是：http://localhost:8080/springmvc/form.do-->    <beanname="/form.do"class="com.rl.controller.FormController">        <!--指定Controller中Object类型的参数上的数据类型 -->        <propertyname="commandClass"value="com.rl.model.Person"></property>        <propertyname="formView"value="form"></property>        <propertyname="successView"value="success"></property>    </bean> </beans>

5 TestController的代码如下：

package com.rl.controller;   import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;   import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController;   /**  * @brief TestController.java springmvc中Controller层  * @attention  * @author toto  * @date 2014-12-28  * @note begin modify by涂作权  */ public class TestController extends AbstractController {           @Override         protected ModelAndView handleRequestInternal(HttpServletRequest arg0,                            HttpServletResponse arg1) throws Exception {                   System.out.println("hello springmvc");                   //视图解析器在解析ModelAndView的时候会自动追加前缀和后缀,                   //如果视图解析器的前缀下依然有目录结构，在ModelAndView中                   //来指定前缀和后缀直接的一段路径                   return new ModelAndView("jsp1/index");         } }

浏览器访问地址：http://localhost:8080/springmvc/hello.do结果如下：



浏览器访问地址：http://localhost:8080/springmvc/hello1.do结果如下：



浏览器访问地址：http://localhost:8080/springmvc/toIndexBean.do结果如下：



6 Person的javaBean代码如下：

package com.rl.model;   import java.sql.Date;   /**  *@brief Person.java person对应的JavaBean  *@attention  *@authortoto-pc  *@date 2014-12-28  *@note begin modify by涂作权  */ publicclass Person {    Integer id;    String name;    Integer age;    String address;    /**     * 修改所有同名的变量Shift +Alt + R     */    Date birthday;    /**     * @return the id     */    public Integer getId() {       returnid;    }    /**     * @param id the id to set     */    publicvoid setId(Integer id) {       this.id = id;    }    /**     * @return the name     */    public String getName() {       returnname;    }    /**     * @param name the name to set     */    publicvoid setName(String name) {       this.name = name;    }    /**     * @return the age     */    public Integer getAge() {       returnage;    }    /**     * @param age the age to set     */        publicvoid setAge(Integer age) {       this.age = age;    }    /**     * @return the address     */    public String getAddress() {       returnaddress;    }    /**     * @param address the address to set     */        publicvoid setAddress(String address) {       this.address = address;    }    /**     * @return the birthday     */    public Date getBirthday() {       returnbirthday;    }    /**     * @param birthday the birthday to set     */        publicvoid setBirthday(Date birthday) {       this.birthday = birthday;    } }

7 CommController的代码如下：

package com.rl.controller;   import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;   import org.springframework.validation.BindException; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractCommandController;   import com.rl.model.Person;   /**  * @brief CommController.java  * @attention  * @author toto  * @date 2014-12-28  * @note begin modify by涂作权  */ @SuppressWarnings("deprecation") public class CommController extends AbstractCommandController {           /**          * Object的参数用来接受实体参数，Person中的属性的接收传          * 递参数的名字一定要和Person中的set方法后名的字符串匹配，          * 大小写不区分          */         @Override         protected ModelAndView handle(HttpServletRequest arg0,                            HttpServletResponse arg1, Object obj, BindException arg3)                            throws Exception {                   Person p = (Person) obj;                   System.out.println("id:" + p.getId() + " name:" + p.getName());                   return new ModelAndView("index");         } }

浏览器中的地址：http://localhost:8080/springmvc/comm.do?id=2&name=toto结果如下：



控制台中的内容如下：



8 FormController的代码如下：

package com.rl.controller;   import java.sql.Date; import java.text.SimpleDateFormat; import javax.servlet.http.HttpServletRequest; import org.springframework.beans.propertyeditors.CustomDateEditor; import org.springframework.web.bind.ServletRequestDataBinder; import org.springframework.web.servlet.mvc.SimpleFormController;   @SuppressWarnings("deprecation") public class FormController extends SimpleFormController {                  @Override         protected void doSubmitAction(Object command) throws Exception {                   System.out.println(command);         }                  /**          * 注册时间类型的属性转换器          */         @Override         protected void initBinder(HttpServletRequest request,                            ServletRequestDataBinder binder) throws Exception {                   binder.registerCustomEditor(Date.class,                                     new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));         } }

浏览器中的地址：http://localhost:8080/springmvc/form.do结果如下：