增删查改，点id能够删除数据，点name修改用户信息

用户登陆而后显示列表

@RequestMapping(value = "/init", method = RequestMethod.POST, params = "login")

public String initLogin(UserBean userBean, Model model) {

UserBean result = helloWorldService.searchUser(userBean);// 将查询的结果返回给result

// model.addAttribute("userBean", result);

if (result != null) {

List<UserBean> result1 = helloWorldService.searchUser1();// 登陆验证成功了之后再加入列表

model.addAttribute("list", result1);

return "login";

} else {

model.addAttribute("message", "您输入的用户名和密码有误，请从新输入！");

}

return "helloWorld";

}

注册

@RequestMapping(value = "/insert", method = RequestMethod.POST, params = "register2")

public String initregister(UserBean userBean, Model model) {

String pass1=userBean.getPassword();

String pass2=userBean.getPasswordConfirm();

if (pass1.equals(pass2)) {

int result = helloWorldService.insert(userBean);

if(result==1)

{

model.addAttribute("message", "注册成功！");

return "success";

}else{

model.addAttribute("message", "注册失败！");

model.addAttribute("userBean", userBean);

return "register";

}

}else{

model.addAttribute("message", "两次密码不一致，请从新输入！");

model.addAttribute("userBean", userBean);

}

return "register";

}

用户删除:(<a th:href="@{delete(userId=${user.userId})}"><span th:text="${user.userId}"></span></a>)

@RequestMapping(value = "/deleteuser", method = RequestMethod.POST,params="no")

public String deleteuser(UserBean userBean, Model model) {

List<UserBean> refresh =helloWorldService.searchUser1();

model.addAttribute("list",refresh); 

return "login";

}

@RequestMapping(value = "/deleteuser", method = RequestMethod.POST,params="delete") 

public String delete(UserBean userBean, Model model) {

     int result = helloWorldService.delete(userBean); 

List<UserBean> refresh =helloWorldService.searchUser1();

model.addAttribute("list",refresh); 

return "login";

}

用户修改:(<a th:href="@{change(userId=${user.userId})}"><span th:text="${user.userName}"></span></a>)

@RequestMapping(value = "/change", method = RequestMethod.GET) 

public String change(UserBean userBean, Model model) {

UserBean result=helloWorldService.searchUser2(userBean);

  model.addAttribute("userBean",result); 

return "change";

}

@RequestMapping(value = "/update", method = RequestMethod.POST) 

public String initUpdate(UserBean userBean, Model model) {  

int update=helloWorldService.update(userBean);

if (update==1) {

List<UserBean> refresh =helloWorldService.searchUser1();

model.addAttribute("list",refresh);  

return "login"; 

}else{

model.addAttribute("message", "修改失败！");

model.addAttribute("userBean", userBean);

return "change";

}