SSH框架+Ajax实现增、删、改、查

package controller; import java.io.IOException; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts2.ServletActionContext; import org.springframework.beans.BeanUtils; import service.LoginService; import entity.User; import entity.UserForm; import com.opensymphony.xwork2.ActionSupport; public class LoginControler extends ActionSupport { private static final long serialVersionUID = 1L; private UserForm userForm; private LoginService loginService; public LoginService getLoginService() { return loginService; } public void setLoginService(LoginService loginService) { this.loginService = loginService; } public UserForm getUser() { return userForm; } public void setUser(UserForm user) { this.userForm = user; } public String login() throws UnsupportedEncodingException{ HttpServletRequest request = ServletActionContext.getRequest(); request.setCharacterEncoding("UTF-8"); User user = new User(); BeanUtils.copyProperties(userForm, user); if(loginService.login(user)){ request.setAttribute("user",loginService.findUser(user)); return SUCCESS; } else{ request.setAttribute("error", "�û�������"); return ERROR; } } /** * * @return * @throws IOException */ public String checkUser() throws IOException{ HttpServletRequest request = ServletActionContext.getRequest(); request.setCharacterEncoding("UTF-8"); HttpServletResponse response=ServletActionContext.getResponse(); response.setContentType("text/html"); PrintWriter out = response.getWriter(); String name =request.getParameter("username"); name =new String((name.getBytes("ISO-8859-1")),"UTF-8"); User user = new User(); user.setUsername(name); if(loginService.login(user)) out.println("false"); else out.println("true"); out.flush(); out.close(); return SUCCESS; } public String register(){ HttpServletRequest request = ServletActionContext.getRequest(); User user = new User(); BeanUtils.copyProperties(userForm, user); loginService.Register(user); return SUCCESS; } }