<filter>

<filter-name>guice</filter-name>

<filter-class>

com.google.inject.servlet.GuiceFilter

</filter-class>

</filter>

<filter>

<filter-name>struts</filter-name>

<filter-class>

org.apache.struts2.dispatcher.FilterDispatcher

</filter-class>

</filter>

<filter-mapping>

<filter-name>guice</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>

<filter-mapping>

<filter-name>struts</filter-name>

<url-pattern>/*</url-pattern>

import com.google.inject.ImplementedBy;

import com.hopeteam.service.impl.MyServiceImpl;

/*

* 采用annotation进行接口与实现类之间的绑定

* 接口与实现类之间绑定是必须的

*

*/

@ImplementedBy(MyServiceImpl.class)

public
interface MyService {

boolean valid(String username,String password);

}

import com.google.inject.Singleton;

import com.hopeteam.service.MyService;

/*

* 我们用@Singleton来标注它

*

*/

@Singleton

public
class MyServiceImpl implements MyService{

public
boolean valid(String username,String password)

{

if(username.equals("fengzhizi")

&& password.equals("123456"))

return
true;

else

return
false;

}

}

import com.google.inject.Binder;

import com.google.inject.Module;

import com.google.inject.Scopes;

import com.hopeteam.service.MyService;

import com.hopeteam.service.impl.MyServiceImpl;

public
class MyModule implements Module {

public
void configure(Binder binder) {

/*

* 将接口MyService 与其实现MyServiceImpl 绑定在一起
并且作用域为Scopes.SINGLETON

*其中如果不配置作用域，默认就是类似于Spring的Scope="prototype"

*/

binder.bind(MyService.class).to(MyServiceImpl.class).in(

Scopes.SINGLETON);

}

import com.google.inject.Inject;

import com.hopeteam.service.MyService;

import com.opensymphony.xwork2.Action;

public
class LoginAction implements Action{

private String username;

private String password;

private String tip;

/*

* 通过field字段进行注入

*/

@Inject

private MyService ms;

public String getUsername() {

return
username;

}

public
void setUsername(String username) {

this.username = username;

}

public String getPassword() {

return
password;

}

public
void setPassword(String password) {

this.password = password;

}

public String getTip() {

return
tip;

}

public
void setTip(String tip) {

this.tip = tip;

}

public String execute() throws Exception

{

if(ms.valid(getUsername(),getPassword()))

{

setTip("Guice和Struts2整合成功！");

return
SUCCESS;

}

else

return
ERROR;

}

<struts>

<constant name="struts.objectFactory" value="guice" />

<package name="fengzhizi" extends="struts-default">

<action name="login" class="com.hopeteam.action.LoginAction">

<result name="error">/error.jsp</result>

<result name="success">/welcome.jsp</result>

</action>

</package>