REST API Response.okentity.build不显示文本

问题描述

我正在为学校练习创建一个简单的Restful API，但遇到了问题。当我尝试显示实体列表或网页上的单个实体时，它不显示任何文本。它似乎确实找到了正确的实体（当我过滤时，它显示正确数量的实体），只是不显示文本。也许它不运行ToString？但是我的ToString方法没有发现任何问题。

这是一个例子：

在我的UserResources中返回用户的功能：

@GET //GET at http://localhost:XXXX/users/1
    @Path("{id}")
    @Produces(MediaType.APPLICATION_JSON)
    public Response getUserPath(@PathParam("id") int Id) {
        User user = fakeDatabase.getUser(Id);
        if (user == null) {
            return Response.status(Response.Status.BAD_REQUEST).entity("Please provide a valid user ID.").build();
        } else {
            return Response.ok(user).build();
        }
    }

FakeDatabase中的getUser：

public User getUser(int userId) {
        for (User user : userList) {
            if (user.GetUserId() == userId) {
                return user;
            }
        }
        return null;
    }

用户ToString：

@Override
    public String toString() {
        String WishlistItems = "";
        for(String item : Wishlist){
            WishlistItems = WishlistItems + item + ",";
        }

        return "User (" + UserId + ") {" + "\n" +
                "Email Address = " + EmailAddress + "\n" +
                "UserName = " + UserName + "\n" +
                Platform.toString() + " ID = " + PlatformID + "\n" +
                "Wishlist :" + WishlistItems + "\n" +
                "}" + "\n";
    }

我在网站上得到的结果：

有人知道这个问题的解决方案吗？

编辑：完整的用户类（我也更新了toString方法）：

@XmlRootElement
public class User {
    private int UserId;
    private String UserName;
    private String EmailAddress;
    private int PasswordHash;
    private Platform Platform;
    private String PlatformID;
    private ArrayList<String> Wishlist = new ArrayList<String>();

    public User(int userId,String Password,String emailAddress,String userName,Platform platform,String platformID){
        UserId = userId;
        EmailAddress = emailAddress;
        UserName = userName;
        Platform = platform;
        PlatformID = platformID;
        hashPassword(Password);
    }

    public User(){

    }

    public int GetUserId(){
        return UserId;
    }

    public String GetUserName(){
        return UserName;
    }

    public void SetUserName(String UserName){
        this.UserName = UserName;
    }

    public String GetEmailAddress(){
        return EmailAddress;
    }

    public void SetEmailAddress(String EmailAddress){
        this.EmailAddress = EmailAddress;
    }

    public Platform GetPlatform(){
        return Platform;
    }

    public void SetPlatform(Platform Platform){
        this.Platform = Platform;
    }

    public String GetPlatformID(){
        return PlatformID;
    }

    public void SetPlatformID(String PlatformID){
        this.PlatformID = PlatformID;
    }

    public void AddToWishlist(String item){
        Wishlist.add(item);
    }

    public ArrayList<String> GetWishlist(){
        return Wishlist;
    }

    public void SetWishlist(ArrayList<String> Wishlist){
        this.Wishlist = Wishlist;
    }

    public void hashPassword(String Password) {
        PasswordHash = Objects.hash(Password);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        User user = (User) o;
        return UserId == user.GetUserId();
    }

    @Override
    public String toString() {
        String WishlistItems = "";
        for(String item : Wishlist){
            WishlistItems = WishlistItems + item + ",";
        }

        return "User (" + UserId + ") {" + "\n" +
                "Email Address = " + EmailAddress + "\n" +
                "UserName = " + UserName + "\n" +
                Platform.toString() + " ID = " + PlatformID + "\n" +
                "Wishlist :" + WishlistItems + "\n" +
                "}" + "\n";
    }
}

解决方法

暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！

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