Struts2中表单与Action传递数据三种方式

1. Action中的属性与表单中的属性一致就可以JSP中的表单<formaction="login.action"method="post">用户名:<inputtype="text"name="username"/> <br/>密码: <inputtype="password"name="password"/><br/><inputtype="submit"value="登陆"/></form>Action中的属性 publicclassLoginActionextends ActionSupport {private String username;private String password;public String getUsername() {returnusername;}publicvoid setUsername(String username) {this.username = username;}public String getPassword() {returnpassword;}publicvoid setPassword(String password) {this.password = password;}public String execute(){if( username.equalsIgnoreCase("aaa")&&password.equals("aaaaaa")){returnSUCCESS;}else{returnERROR;}}}2. 使用一个VO类在表单中提交的属性名改为user.username<formaction="login.action"method="post">用户名:<inputtype="text"name="user.username"/> <br/>密码: <inputtype="password"name="user.password"/><br/><inputtype="submit"value="登陆"/></form>LoginAction中的属性改为userpublicclassLoginActionextends ActionSupport{private User user;public User getUser() {returnuser;}publicvoid setUser(User user) {this.user = user;}public String execute(){if( user.getUsername().equalsIgnoreCase("aaa")&&user.getPassword().equals("aaaaaa")){returnSUCCESS;}else{returnERROR;}}}3. 使用Struts2中的ModelDriven数据模式Action类要实现一个泛型接口,前台表单与1相同publicclassLoginActionextends ActionSupport implements ModelDriven<User> {private User user = new User();public String execute(){if( user.getUsername().equalsIgnoreCase("aaa")&&user.getPassword().equals("aaaaaa")){returnSUCCESS;}else{returnERROR;}}public User getModel() {returnuser;}}

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