SpringMVC整合DWR

版本信息：

Spring3.1.2

Dwr3.0.M1

web.xml配置信息

<!-- spring mvc -->
 	<servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
        	<param-name>contextConfigLocation</param-name>
        	<param-value>classpath:spring-mvc-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
	
	<servlet-mapping>
	  <servlet-name>dispatcherServlet</servlet-name>
	  <url-pattern>/dwr/*</url-pattern>
	</servlet-mapping>

spring-mvc-servlet.xml中配置信息

<dwr:configuration>
		<dwr:convert type="bean" class="org.mvn.dwr.model.User"></dwr:convert>
	</dwr:configuration>
	<dwr:url-mapping/>
    <dwr:controller id="dwrController" debug="true"/>
    
	<bean class="org.mvn.dwr.dao.impl.UserDaoImpl" id="userDaoImpl">
	</bean>
	
	<bean class="org.mvn.dwr.service.impl.UserServiceImpl" id="userServiceImpl">
		<property name="userDao" ref="userDaoImpl"></property>
		<dwr:remote javascript="dwrUserService">
			<dwr:include method="checkUsernameIsExists"/>
			<dwr:include method="getUsername"/>
			<dwr:include method="findUserById"/>
			<dwr:include method="listAll"/>
		</dwr:remote>
	</bean>

User.java

package org.mvn.dwr.model;


public class User {
	private long id;
	private String username;
	private String birthday;
	private String address;
	
	public User() {
	}
	
	public User(long id, String username, String birthday, String address) {
		super();
		this.id = id;
		this.username = username;
		this.birthday = birthday;
		this.address = address;
	}
	
	public long getId() {
		return id;
	}

	public void setId(long id) {
		this.id = id;
	}
	public String getUsername() {
		return username;
	}
	public void setUsername(String username) {
		this.username = username;
	}
	public String getBirthday() {
		return birthday;
	}
	public void setBirthday(String birthday) {
		this.birthday = birthday;
	}
	public String getAddress() {
		return address;
	}
	public void setAddress(String address) {
		this.address = address;
	}
	
	
	
}

UserDao.java

package org.mvn.dwr.dao;

import java.util.List;

import org.mvn.dwr.model.User;

public interface UserDao {
	
	boolean checkUsernameIsExists(String username);
	
	String getUsername(long id);
	
	User findUserById(long id);
	
	List<User> listAll();
	
}

UserDaoImpl.java

package org.mvn.dwr.dao.impl;

import java.util.ArrayList;
import java.util.List;

import org.mvn.dwr.dao.UserDao;
import org.mvn.dwr.model.User;

public class UserDaoImpl implements UserDao{

	@Override
	public boolean checkUsernameIsExists(String username) {
		return true;
	}

	@Override
	public String getUsername(long id) {
		return "dwrservice";
	}

	@Override
	public User findUserById(long id) {
		return new User(1,"admin","1987-02-03","陝西西安");
	}

	public List<User> listAll(){
		List<User> lists=new ArrayList<User>();
		for (int i = 1; i <= 100; i++) {
			lists.add(new User(i,"admin"+i,"1987-02-03","陝西西安"+i));
		}
		return lists;
	}
}

UserService.java

package org.mvn.dwr.service;

import java.util.List;

import org.mvn.dwr.model.User;

public interface UserService {
	
	boolean checkUsernameIsExists(String username);
	
	String getUsername(long id);
	
	User findUserById(long id);
	
	List<User> listAll();
}

UserServiceImpl.java

package org.mvn.dwr.service.impl;

import java.util.List;

import org.mvn.dwr.dao.UserDao;
import org.mvn.dwr.model.User;
import org.mvn.dwr.service.UserService;

public class UserServiceImpl implements UserService {
	
	private UserDao userDao;
	
	public void setUserDao(UserDao userDao) {
		this.userDao = userDao;
	}

	@Override
	public boolean checkUsernameIsExists(String username) {
		return userDao.checkUsernameIsExists(username);
	}

	@Override
	public String getUsername(long id) {
		return userDao.getUsername(id);
	}

	@Override
	public User findUserById(long id) {
		return userDao.findUserById(id);
	}

	@Override
	public List<User> listAll() {
		return userDao.listAll();
	}

}

在spring-mvc-servlet.xml中增加

xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr"

http://www.directwebremoting.org/schema/spring-dwr

http://www.directwebremoting.org/schema/spring-dwr-3.0.xsd

<dwr:configuration>
		<dwr:convert type="bean" class="org.mvn.dwr.model.User"></dwr:convert>
</dwr:configuration>
	<dwr:url-mapping/>
<dwr:controller id="dwrController" debug="true"/>
    
<bean class="org.mvn.dwr.dao.impl.UserDaoImpl" id="userDaoImpl">
</bean>
	
<bean class="org.mvn.dwr.service.impl.UserServiceImpl" id="userServiceImpl">
<property name="userDao" ref="userDaoImpl"></property>
<dwr:remote javascript="dwrUserService">
	<dwr:include method="checkUsernameIsExists"/>
	<dwr:include method="getUsername"/>
	<dwr:include method="findUserById"/>
	<dwr:include method="listAll"/>
</dwr:remote>
</bean>

<dwr:configuration>
<dwr:convert type="bean" class="org.mvn.dwr.model.User"></dwr:convert>
</dwr:configuration>

表示把User進行轉換

<dwr:url-mapping/>
<dwr:controller id="dwrController" debug="true"/>

兩個不能少

<dwr:remote javascript="dwrUserService">
<dwr:include method="checkUsernameIsExists"/>
<dwr:include method="getUsername"/>
<dwr:include method="findUserById"/>
<dwr:include method="listAll"/>
</dwr:remote>

dwrUserService爲指定dwr生成js文件的名稱

dwr:include表示那些方法需要開啓遠程調用

最後別忘了配置

<bean id="simpleUrlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
		<property name="alwaysUseFullPath" value="true"></property>
		<property name="mappings">
			<props>
				<prop key="/dwr/*">dwrController</prop>
				<prop key="/interface/**">dwrController</prop>
			</props>
		</property>
</bean>

最後在瀏覽器訪問http://localhost:8080/webapp/dwr/