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[转]spring的ParameterMethodNameResolver

时间:2015-09-01 22:49:38      阅读:210      评论:0      收藏:0      [点我收藏+]

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例1:

ParameterMethodNameResolver,这个可以根据请求的参数来确定一个需要调用的方法。
例如,http://www.sf.net/index.view?testParam=testIt,这个请求会调用名称为testIt的处理方法。

 

1:新建项目test

2:在web.xml中配置如下:

 <servlet>
  <servlet-name>spring</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <load-on-startup>2</load-on-startup>
 </servlet>
 <servlet-mapping>
  <servlet-name>spring</servlet-name>
  <url-pattern>/spring/*</url-pattern>
 </servlet-mapping>

3:控制器:

package cn.iwoo.server.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;

public class BController extends MultiActionController {
 public ModelAndView doSearch(HttpServletRequest request,HttpServletResponse response) throws Exception{
  System.out.println(this.getClass()+""+"doSearch()");//得到现在运行的class
  return new ModelAndView("index");//返回试图名
 }
}

4:编辑ModelAndView视图在WEB-INF下新建jsp,把默认的index.jsp放到里面:

5:在WEB-INF下面新建spring-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<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"
 xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-3.0.xsd">
      
       <!-- <context:component-scan base-package="cn.iwoo.server.controller"/> --><!-- 扫描web包,应用Spring的注解 -->
       <!-- 视图解析规则 -->
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
       p:viewClass="org.springframework.web.servlet.view.JstlView"
       p:prefix="/WEB-INF/jsp/"
       p:suffix=".jsp"/>
      
       
       <bean id="urlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
         <property name="mappings">
          <props>
           <prop key="/user.view">bController</prop>
          </props>
         </property>
       </bean>
      
       <!-- 根据请求的参数确定调用的方法 -->
       <bean id="bMethodNameResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
         <property name="paramName" value="method"></property>
         <property name="defaultMethodName" value="doSearch"></property>              
       </bean>      

       
       <bean id="bController" class="cn.iwoo.server.controller.BController">
         <property name="methodNameResolver">
          <ref local="bMethodNameResolver"/>
         </property>
       </bean>     
</beans>

6:在浏览器中输入:

http://localhost:8080/test/spring/user.view?method   会调用配置文件配置的默认的方法doSearch

得到结果如下:

技术分享
 
例2:
spring的ParameterMethodNameResolver的可以根据不同的参数执行不同方法,类似Struts的dyncaction
下面有一个例子
package ee.bug;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
public class ProductController extends MultiActionController {

/**
  * Handles view
  */
public ModelAndView view(HttpServletRequest request, HttpServletResponse response) throws Exception {

  response.getOutputStream().print("Viewing");

  return null;
}

/**
  * Handles index
  */
public ModelAndView index(HttpServletRequest request, HttpServletResponse response) throws Exception {
  response.getOutputStream().print("index");
  return null;
}

}
 
配置文件:
1.<bean id="productMethodNameResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
2.        <property name="paramName">
3.    <value>method</value>
4.     </property>
5.       <property name="defaultMethodName">
6.    <value>view</value>
7.  </property>
8.</bean>
9.   
10.<bean id="productController" class="ee.bug.ProductController">
11.        <property name="methodNameResolver">
12.    <ref local="productMethodNameResolver"/>
13.  </property>
14.</bean>

    注: <property name="paramName"><value>method</value></property>参数名为method 默认为action
    
输入view.do?method=view 显示Viewing
输入view.do?method=indedx 显示index
输入/view.do?method=fdsf  显示404错误

[转]spring的ParameterMethodNameResolver

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原文地址:http://www.cnblogs.com/ZhuRenWang/p/4777114.html

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