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