如何使用spring和hibernate

时间：2015-07-29 20:58:49

标签： java spring hibernate

我在数据库中有一个表：

  1. UserRoles（字典）

    • 编号
    • 姓名（管理员，用户......）

  2. UsersLogins

    • 编号
    • 电子邮件
    • 密码

  3. 的UserProfiles

    • 编号
    • 姓
    • 名字

  4. 用户

    • 编号
    • IdUserLogin（FK）
    • IdUserRole（FK）
    • IdUserProfile（FK）

    5. 如何将值插入上述三个表？

    我试过这样的事情：

    控制器：

    @Autowired
private UserProfilesService userProfilesService;
@Autowired
private D_UserRolesService d_UserRolesService;
@Autowired
private UserLoginsService loginsService;
@Autowired
private UsersService usersService;

@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddNewUserForm(Model model) {
    UserProfiles userProfiles = new UserProfiles();
    UserLogins userLogins = new UserLogins();
    Users users = new Users();
    model.addAttribute("userProfiles", userProfiles);
    model.addAttribute("users", users);
    model.addAttribute("userLogin", userLogins);
    model.addAttribute("userRoless", d_UserRolesService.getAllRoles());
    return "userNew";
}

@RequestMapping(value = "/add", method = RequestMethod.POST)
public String processAddNewUserForm(@ModelAttribute("userProfiles") UserProfiles profileToBeAdded,
        @ModelAttribute("userLogin") UserLogins loginToBeAdded, @ModelAttribute("users") Users userToBeAdded,
        HttpServletRequest request) {
    userProfilesService.addUser(profileToBeAdded);
    loginsService.AddOrUpdateUser(loginToBeAdded);
    usersService.AddOrUpdateUser(userToBeAdded);

    return "redirect:/users";
}

    JSP PAGE：

    <form:form class="form-horizontal" >
                <fieldset>
                    <legend>New user</legend>
                    <!-- Login -->
                    <form:form modelAttribute="userLogin">
                        <form:hidden path="idLogin"/>
                        <div class="form-group">
                            <label class="control-label col-lg-2" for="Email">E-mail</label>
                            <div class="col-lg-10">
                                <form:input id="Email" path="Email" type="text" class="form:input-large"/>
                            </div>
                        </div>                   
                        <div class="form-group">
                            <label class="control-label col-lg-2" for="Password">Password</label>
                            <div class="col-lg-10">
                                <form:password id="Password" path="Password" class="form:input-large"/>
                            </div>
                        </div>    
                    </form:form>
                    <!-- Profile --> 
                    <form:form modelAttribute="userProfiles">
                        <form:hidden path="id"/>
                        <div class="form-group">
                            <label class="control-label col-lg-2" for="FirstName">FirstName</label>
                            <div class="col-lg-10">
                                <form:input id="FirstName" path="FirstName" type="text" class="form:input-large"/>
                            </div>
                        </div>
                        <div class="form-group">
                            <label class="control-label col-lg-2" for="LastName">LastName</label>
                            <div class="col-lg-10">
                                <form:input id="LastName" path="LastName" type="text" class="form:input-large"/>
                            </div>
                        </div>
                    </form:form>
                    <!-- Users -->  
                    <form:form modelAttribute="users">
                        <form:hidden path="idUser"/>
                        <div class="form-group">
                            <label class="control-label col-lg-2" for="idUserRole">Role</label>
                            <div class="col-lg-10">
                                <form:select path="userRole" items="${userRoless}"
                                             itemValue="IdUserRole" itemLabel="name" multiple="false"
                                             class="span12">
                                </form:select>
                            </div>
                            <div class="form-group">
                                <label class="control-label col-lg-2" for="IdLogin">Id</label>
                                <div class="col-lg-10">
                                    <form:input id="userLogin" path="userLogin" type="text" class="form:input-large"/>
                                </div>
                            </div>
                            <div class="form-group">
                                <label class="control-label col-lg-2" for="IdLogin">Id</label>
                                <div class="col-lg-10">
                                    <form:input id="userProfile" path="userProfile" type="text" class="form:input-large"/>
                                </div>
                            </div>
                        </div>
                    </form:form>

                    <div class="form-group">
                        <div class="col-lg-offset-2 col-lg-10">
                            <input type="submit" id="btnAdd" class="btn btn-primary" value ="Add"/>
                        </div>
                    </div>      

                </fieldset>
            </form:form>

1 个答案:

答案 0 :(得分：2)

注意：如果您将代表每个表的java类添加到您的问题中，那将非常有用。

您应该添加描述表格与您的类相关的元数据（pojos），并将CascadeType设置为Persist或ALL，例如：

@OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY, orphanRemoval = true)
@JoinColumn(name = "user_roles", referencedColumnName = "id")
private UserRoles userRole;


@OneToOne(cascade = CascadeType.ALL, optional = false, fetch = FetchType.EAGER, orphanRemoval =
        true)
@JoinColumn(name = "id_user_login", referencedColumnName = "id")
private UserLogin userLogin;

@OneToOne(cascade = CascadeType.ALL, optional = false, fetch = FetchType.EAGER, orphanRemoval =
        true)
@JoinColumn(name = "id_user_profile", referencedColumnName = "id")
private UserProfile userProfile;

然后，您可以设置子类/表的相应值并插入父类/表：

Users user = new Users();
UserProfile myUserProfile = new UserProfile();
UserLogin myUserLogin = new UserLogin();
UserRole myUserRole = new UserRole();
//... set the values ...
//then:
user.setUserProfile(myUserProfile);
user.setUserLogin(myUserLogin);
user.setUserRole(myUserRole);

[编辑]

我不确定你是如何坚持你的物体的，但我认为你是这样做的 服务（userProfilesService等）。

您可以通过以下方法之一放置我上面写的内容： 1。

@RequestMapping(value = "/add", method = RequestMethod.GET)
public String getAddNewUserForm(Model model) {
    UserProfiles userProfiles = new UserProfiles();
    UserLogins userLogins = new UserLogins();
    Users users = new Users();
    //Here
    users.setUserProfile(userProfiles);
    users.setUserLogins(userLogins);
    userLogins.setUsers(users);
    userProfiles.setUsers(users);

    model.addAttribute("userProfiles", userProfiles);
    model.addAttribute("users", users);
    model.addAttribute("userLogin", userLogins);
    model.addAttribute("userRoless", d_UserRolesService.getAllRoles());
    return "userNew";
}

2。或

@RequestMapping(value = "/add", method = RequestMethod.POST)
public String processAddNewUserForm(@ModelAttribute("userProfiles") UserProfiles profileToBeAdded,
        @ModelAttribute("userLogin") UserLogins loginToBeAdded, @ModelAttribute("users") Users userToBeAdded,
        HttpServletRequest request) {
    //Or here
    userToBeAdded.setUserProfile(profileToBeAdded);
    userToBeAdded.setUserLogins(loginToBeAdded);
    loginToBeAdded.setUsers(userToBeAdded);
    profileToBeAdded.setUsers(userToBeAdded);

    userProfilesService.addUser(profileToBeAdded);
    loginsService.AddOrUpdateUser(loginToBeAdded);
    usersService.AddOrUpdateUser(userToBeAdded);

    return "redirect:/users";
}

[编辑2]

正如@Amogh指出的那样，你的观点也存在问题。据我所知，即使在JSP / JSF中你也应该有类似于下面的内容：

请注意：我不知道Spring并且在很长一段时间内没有使用JSP / JSF，所以这可能不是完全准确或最有效的方法。 

<form:form class="form-horizontal"  modelAttribute="users">
    <fieldset>

        <legend>New user</legend>
        <!-- Login -->
        <form:hidden path="idLogin"/>
        <div class="form-group">
            <label class="control-label col-lg-2" for="Email">E-mail</label>
            <div class="col-lg-10">
                <form:input id="Email" path="users.userLogin.email" type="text" class="form:input-large"/>
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-lg-2" for="Password">Password</label>
            <div class="col-lg-10">
                <form:password id="Password" path="users.userLogin.password" class="form:input-large"/>
            </div>
        </div>
    </fieldset>
    <fieldset>
        <!-- Profile -->
        <form:hidden path="id"/>
        <div class="form-group">
            <label class="control-label col-lg-2" for="FirstName">FirstName</label>
            <div class="col-lg-10">
                <form:input id="FirstName" path="users.userProfile.firstName" type="text" class="form:input-large"/>
            </div>
        </div>
        <div class="form-group">
            <label class="control-label col-lg-2" for="LastName">LastName</label>
            <div class="col-lg-10">
                <form:input id="LastName" path="users.userProfile.lastName" type="text" class="form:input-large"/>
            </div>
        </div>

        <div class="form-group">
            <div class="col-lg-offset-2 col-lg-10">
                <input type="submit" id="btnAdd" class="btn btn-primary" value ="Add"/>
            </div>
        </div>

    </fieldset>
</form:form>
相关问题
最新问题