struts2的处理方式和action实现方式
1.属性驱动
jsp页面：
<form action="register" method="post"> 用户名:<input type="text" name="name" /><br> 密码:<input type="password" name="pwd" /><br> 年龄:<input type="text" name="age" /><br> 邮箱:<input type="text" name="email" /><br> <input type="submit" value="提交" /> </form>
action代码：
public class Login extends ActionSupport{private String name;private String pwd;@Overridepublic String execute() throws Exception {if ("admin".equals(name)&&"123".equals(pwd)) {return "success";} else {return "fail";}}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPwd() {return pwd;}public void setPwd(String pwd) {this.pwd = pwd;}}
2.对驱动象
jsp页面：
<form action="register" method="post"> 用户名:<input type="text" name="user.name" /><br> 密码:<input type="password" name="user.pwd" /><br> 年龄:<input type="text" name="user.age" /><br> 邮箱:<input type="text" name="user.email" /><br> <input type="submit" value="提交" /> </form>
action类：
public class Login extends ActionSupport{private User user; //注册public String register(){System.out.println(user); return SUCCESS; }public User getUser() { return user; }public void setUser(User user) { this.user = user; } }
userBean类：
public class User { private String name; private String pwd; private int age; private String email;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPwd() {return pwd;}public void setPwd(String pwd) {this.pwd = pwd;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}
}
3.模式驱动
jsp页面：
<form action="register" method="post"> 用户名:<input type="text" name="name" /><br> 密码:<input type="password" name="pwd" /><br> 年龄:<input type="text" name="age" /><br> 邮箱:<input type="text" name="email" /><br> <input type="submit" value="提交" /> </form>
action：
import com.opensymphony.xwork2.ModelDriven;public class Login extends ActionSupport{public class UserDrivenAction implements ModelDriven<User>{private User user = new User(); //注册 public String register(){ System.out.println(user); return SUCCESS; }public User getModel() { return user; }public User getUser() { return user; }public void setUser(User user) { this.user = user; } }}
uesrBean类：
public class User { private String name; private String pwd; private int age; private String email;public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPwd() {return pwd;}public void setPwd(String pwd) {this.pwd = pwd;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}
}
4.定义一个pojo类
好处：自定义一个普通的 java 类即可，不具有侵入型
public class PojoAction { public String execute(){ System.out.println("pojo action"); return "success"; }
}
5.实现Action接口
好处：使得我们编写的代码更加规范
public class InterfaceAction implements Action{ public String execute() throws Exception { System.out.println("interface action");return SUCCESS; }
}
6.继承ActionSupport类
好处：可以继承一些 ActionSuport 实现功能，如：验证；官方推荐使用
public class ExtendsAction extends ActionSupport{ @Override public String execute() throws Exception { System.out.println("extends action"); return SUCCESS; }
}