一、Action概要
二、动态调用
三、通配符(规则:*_*等价于{1_2})
四、获取参数
1 1、方式一:逐个获取（推荐使用）
2 package com.aaron.action.param;
3 import com.opensymphony.xwork2.ActionSupport;
4 public class ParamMethodOneAction extends ActionSupport{
5 private int id;
6 private String userName;
7 private String userPass;
8 @Override
9 public String execute() throws Exception {
10 System.out.println("id:"+id+"---"+"userName:"+userName+"---"+"userPass:"+userPass);
11 this.addFieldError("id", id+"");
12 this.addFieldError("userName", userName);
13 this.addFieldError("userPass", userPass);
14
15 return SUCCESS;
16 }
17 public int getId() {
18 return id;
19 }
20 public void setId(int id) {
21 this.id = id;
22 }
23 public String getUserName() {
24 return userName;
25 }
26 public void setUserName(String userName) {
27 this.userName = userName;
28 }
29 public String getUserPass() {
30 return userPass;
31 }
32 public void setUserPass(String userPass) {
33 this.userPass = userPass;
34 }
35 }
36
37 2、方式二:用某个entity获取（推荐使用）
38 package com.aaron.action.param;
39
40 import com.aaron.action.model.User;
41 import com.opensymphony.xwork2.ActionSupport;
42
43 /**
44 * 传递参数一般使用这种方式
45 * @author qiuyong
46 */
47 public class ParamMethodTwoAction extends ActionSupport {
48
49 private User user;
50 @Override
51 public String execute() throws Exception {
52 System.out.println("id:"+user.getId()+"---"+"userName:"+user.getUserName()+"---"+"userPass:"+user.getUserPass());
53 this.addFieldError("id", user.getId()+"");
54 this.addFieldError("userName", user.getUserName());
55 this.addFieldError("userPass", user.getUserPass());
56 return SUCCESS;
57 }
58
59 public User getUser() {
60 return user;
61 }
62
63 public void setUser(User user) {
64 this.user = user;
65 }
66
67 }
68
69 3、方式三:利用inplModelDriven（不推荐使用）
70 package com.aaron.action.param;
71 import com.aaron.action.model.User;
72 import com.opensymphony.xwork2.ActionSupport;
73 import com.opensymphony.xwork2.ModelDriven;
74
75 /**
76 * @author qiuyong
77 * 这种方式一般不用
78 */
79 public class ParamMethodThreeAction extends ActionSupport implements ModelDriven<User>{
80 private User user=new User();
81
82 @Override
83 public String execute() throws Exception {
84 System.out.println("id:"+user.getId()+"---"+"userName:"+user.getUserName()+"---"+"userPass:"+user.getUserPass());
85 this.addFieldError("id", user.getId()+"");
86 this.addFieldError("userName", user.getUserName());
87 this.addFieldError("userPass", user.getUserPass());
88 return SUCCESS;
89 }
90
91 public User getModel() {
92 return user;
93 }
94
95 public User getUser() {
96 return user;
97 }
98
99 public void setUser(User user) {
100 this.user = user;
101 }
102 }
五、访问Web元素
1、Map类型_Ioc方式（推荐使用这种方式）
/**
* (推荐使用这种方式)利用Ioc创造Map类型request、session、application
* @author qiuyong
*/
public class WebElementMapIocAction extends ActionSupport implements RequestAware,SessionAware,ApplicationAware{
Map<String,Object> request;
Map<String,Object> session;
Map<String,Object> application;
@Override
public String execute() throws Exception {
request.put("request", "MapIocRequest");
session.put("session","MapIocSession");
application.put("application","MapIocApplication");
return SUCCESS;
}
public void setRequest(Map<String, Object> request) {
this.request=request;
}
public void setSession(Map<String, Object> session) {
this.session=session;
}
public void setApplication(Map<String, Object> application) {
this.application=application;
}
}
2、Map类型_Struts容器
/**
* @author qiuyong
* 利用Struts容器创造Map类型request、session、application
*/
public class WebElementMapActionContextAction extends ActionSupport {
Map request;
Map session;
Map application;
public WebElementMapActionContextAction() {
request = (Map) ActionContext.getContext().get("request");
session = ActionContext.getContext().getSession();
application = ActionContext.getContext().getApplication();
}
@Override
public String execute() throws Exception {
request.put("request", "MapActionContextRequest");
session.put("session","MapActionContextSession");
application.put("application","MapActionContextApplication");
return SUCCESS;
}
}
3、Servlet原始类型_Ioc方式
/**
* @author qiuyong
* 利用Ioc的方式创造原始类型的request、session、application
*/
public class WebElementRealIocAction extends ActionSupport implements ServletRequestAware {
HttpServletRequest request;
HttpSession session;
ServletContext application;
@Override
public String execute() throws Exception {
request.setAttribute("request","RealIocRequest");
session.setAttribute("session","RealIocSession");
application.setAttribute("application","RealIocApplication");
return SUCCESS;
}
public void setServletRequest(HttpServletRequest request) {
this.request=request;
this.session=request.getSession();
this.application=session.getServletContext();
}
}
4、Servlet原始类型_Struts容器
/**
* @author qiuyong
* 利用Struts容器创造原始类型的request、session、application
*/
public class WebElementRealActionContextAction extends ActionSupport {
HttpServletRequest request;
HttpSession session;
ServletContext application;
public WebElementRealActionContextAction() {
this.request=ServletActionContext.getRequest();
this.session=request.getSession();
this.application=session.getServletContext();
}
@Override
public String execute() throws Exception {
request.setAttribute("request","RealActionContextRequest");
session.setAttribute("session","RealActionContextSession");
application.setAttribute("application","RealActionContextApplication");
return SUCCESS;
}
}
六、包含其他xml文件配置
源码链接:http://pan.baidu.com/s/1bpAAz19
借鉴:来自马士兵视频|Struts2的思考