Java hibernate和spring MVC上的更新不工作
在编辑表之后,我无法更新它,因为在调试和呈现DAO文件中的所有值时,它工作正常,但在DAO实现之后,它不会在用户列表中显示相同值的更新值。我在此附上我的代码: JSP文件:Java hibernate和spring MVC上的更新不工作,java,spring,hibernate,jsp,Java,Spring,Hibernate,Jsp,在编辑表之后,我无法更新它,因为在调试和呈现DAO文件中的所有值时,它工作正常,但在DAO实现之后,它不会在用户列表中显示相同值的更新值。我在此附上我的代码: JSP文件: <form:form id="editForm" modelAttribute="user" action="update"> <div style="width: 400px; padding: 10px; border: 5px solid gray; margin: 0px;"> <tab
<form:form id="editForm" modelAttribute="user" action="update">
<div style="width: 400px; padding: 10px; border: 5px solid gray; margin: 0px;">
<table width="400px" height="150px">
<tr><td><font face="Arial">First Name:</font></td>
<td><input name="licenseNumber" value="${model.user.firstName}"></td></tr>
<tr><td><font face="Arial">Last Name:</font></td>
<td><input name="licenseNumber" value="${model.user.lastName}"></td></tr>
<tr><td><font face="Arial">Gender:</font></td>
<td><input name="licenseNumber" value="${model.user.gender}"></td></tr>
<tr><td><font face="Arial">City Name:</font></td>
<td><input name="licenseNumber" value="${model.user.city}"></td></tr>
<tr><td></td><td>
<input type="submit" value="Edit" />
<br>
<a href="userList.html" >Cancel</a>
</td></tr>
</table>
</div>
</form:form>
服务等级
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class UserServiceImpl implements UserService {
@Autowired
UserDao userDao;
@Override
public void addUser(User user)
{
userDao.saveUser(user);
}
@Override
public List<User> getUser()
{
return userDao.getUser();
}
@Override
public User getUser(int id)
{
return userDao.getUser(id);
}
@Override
public void updateUser(User user)
{
userDao.updateUser(user);
}
}
@服务
@事务性(传播=propagation.SUPPORTS,只读=true)
公共类UserServiceImpl实现UserService{
@自动连线
UserDao UserDao;
@凌驾
public void addUser(用户)
{
userDao.saveUser(用户);
}
@凌驾
公共列表getUser()
{
返回userDao.getUser();
}
@凌驾
公共用户getUser(int-id)
{
返回userDao.getUser(id);
}
@凌驾
public void updateUser(用户)
{
userDao.updateUser(用户);
}
}
控制器类
@RequestMapping(value = "/edit", method = RequestMethod.GET)
public ModelAndView editUserData(@ModelAttribute("user") User user,
BindingResult result) {
Map<String, Object> model = new HashMap<String, Object>();
model.put("user", userService.getUser(user.getId()));
return new ModelAndView("Edit","model",model);
}
@RequestMapping(value = "/update", method = RequestMethod.POST)
public ModelAndView updateUserData(@ModelAttribute("user") User user,
BindingResult result,SessionStatus status) {
userService.updateUser(user);
status.setComplete();
return new ModelAndView("redirect:/userList.html");
}
@RequestMapping(value=“/edit”,method=RequestMethod.GET)
公共模型和查看editUserData(@ModelAttribute(“用户”)用户,
BindingResult(结果){
映射模型=新的HashMap();
put(“user”,userService.getUser(user.getId());
返回新模型和视图(“编辑”、“模型”、“模型”);
}
@RequestMapping(value=“/update”,method=RequestMethod.POST)
public ModelAndView updateUserData(@ModelAttribute(“用户”)用户,
BindingResult结果,SessionStatus状态){
userService.updateUser(用户);
status.setComplete();
返回新的ModelAndView(“重定向:/userList.html”);
}
试试看
您正在将所有@Transactional方法设置为readOnly=“true”。您应该重写在数据库中进行更改的所有方法
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class UserServiceImpl implements UserService {
@Autowired
UserDao userDao;
@Override
@Transactional(propagation = Propagation.SUPPORTS, readOnly = false)
public void addUser(User user)
{
userDao.saveUser(user);
}
@Override
public List<User> getUser()
{
return userDao.getUser();
}
@Override
public User getUser(int id)
{
return userDao.getUser(id);
}
@Override
@Transactional(propagation = Propagation.SUPPORTS, readOnly = false)
public void updateUser(User user)
{
userDao.updateUser(user);
}
}
@服务
@事务性(传播=propagation.SUPPORTS,只读=true)
公共类UserServiceImpl实现UserService{
@自动连线
UserDao UserDao;
@凌驾
@事务性(传播=propagation.SUPPORTS,只读=false)
public void addUser(用户)
{
userDao.saveUser(用户);
}
@凌驾
公共列表getUser()
{
返回userDao.getUser();
}
@凌驾
公共用户getUser(int-id)
{
返回userDao.getUser(id);
}
@凌驾
@事务性(传播=propagation.SUPPORTS,只读=false)
public void updateUser(用户)
{
userDao.updateUser(用户);
}
}
@Service
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public class UserServiceImpl implements UserService {
@Autowired
UserDao userDao;
@Override
@Transactional(propagation = Propagation.SUPPORTS, readOnly = false)
public void addUser(User user)
{
userDao.saveUser(user);
}
@Override
public List<User> getUser()
{
return userDao.getUser();
}
@Override
public User getUser(int id)
{
return userDao.getUser(id);
}
@Override
@Transactional(propagation = Propagation.SUPPORTS, readOnly = false)
public void updateUser(User user)
{
userDao.updateUser(user);
}
}