SpringMVC整合DWR
jopen
12年前
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","陕西西安"); } 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","陕西西安"+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进行转换
<dwr:url-mapping/>
<dwr:controller id="dwrController" debug="true"/>
两个不能少
<dwr:remote javascript="dwrUserService">
<dwr:include method="checkUsernameIsExists"/>
<dwr:include method="getUsername"/>
<dwr:include method="findUserById"/>
<dwr:include method="listAll"/>
</dwr:remote>
dwrUserService为指定dwr生成js文件的名称
dwr:include表示那些方法需要开启远程调用
最后别忘了配置
<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>
最后在浏览器访问http://localhost:8080/webapp/dwr/
这里有一个奇怪的问题
就是上面的dao和service用注解注入的时候会报千奇百怪的异常信息。也不知道是什么原因，暂且不去管了，在整个整合过程中换了无数个dwr的jar包。可以说dwr的版本真的很坑爹。官方3.0系列至今没有发行正式版的版本，所以难免会出现千奇百怪的问题，有知道的朋友，可以告诉我一声，先谢过了。。。。
来自：http://blog.csdn.net/sxyx2008/article/details/8000381