在 Java 中反序列化 JSON GET 请求响应

Question

反序列化列表中的对象

我目前有一个“管理员”实体，根据 AllAdmin() 的 GET 请求，我将返回以下响应。这在 Postman 中使用过。

获取 AllAdmin() 的响应 [POSTMAN]

[
    {
        "adminId": 1,
        "fullName": "Patrick ",
        "email": "patrick@gmail.com",
        "dob": "1669-12-12",
        "mobileNumber": "96369636",
        "password": "password123!",
        "usages": [
            {
                "id": 3,
                "datetimeUnlocked": "2021-06-07 10:12:23"
            },
            {
                "id": 4,
                "datetimeUnlocked": "2021-06-07 10:12:27"
            }
        ],
        "authorization": [
            {
                "id": 2,
                "datetimeAccepted": "2021-06-07 10:12:14"
            }
        ],
        "adminAllow": []
    },
    {
        "adminId": 2,
        "fullName": "Worker ",
        "email": "worker@gmail.com",
        "dob": "2000-12-12",
        "mobileNumber": "96399639",
        "password": "password123!",
        "usages": [],
        "authorization": [],
        "adminAllow": []
    } ]

当前代码是我的 Android 应用程序中的管理模型。

Admin.java 模型类

public class Admin {

    @SerializedName("adminId")
    private long adminID;

    @SerializedName("fullName")
    private String adminFullName;

    @SerializedName("email")
    private String adminEmail;

    @SerializedName("dob")
    private String adminDOB;

    @SerializedName("mobileNumber")
    private String adminMobileNumber;

    // Constructor
    public Admin(long adminID, String adminFullName, String adminEmail, String adminDOB, String adminMobileNumber) {
        this.adminID = adminID;
        this.adminFullName = adminFullName;
        this.adminEmail = adminEmail;
        this.adminDOB = adminDOB;
        this.adminMobileNumber = adminMobileNumber;
    }

    // Getter
    public long getAdminID() {
        return adminID;
    }

    public String getAdminFullName() {
        return adminFullName;
    }

    public String getAdminEmail() {
        return adminEmail;
    }

    public String getAdminDOB() {
        return adminDOB;
    }

    public String getAdminMobileNumber() {
        return adminMobileNumber;
    }
}

我想澄清一下我将如何反序列化 usages 和 authorization 属性，以便我能够访问和操作这些数据条目？

提前感谢您的澄清！

Answer 1

对于usages，您应该使用List<Usage> 作为可序列化。我的假设是你正在使用改造。因此，Retrofit Gson 转换器将负责解析Usage 的数组。同样的逻辑也适用于authorization。您可以在 datetimeAccepted 案例中使用不同的密钥。

检查此示例以获取 Usage

public class Usage {

    @SerializedName("id")
    @Expose
    private Integer id;
    @SerializedName("datetimeUnlocked")
    @Expose
    private String datetimeUnlocked;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getDatetimeUnlocked() {
        return datetimeUnlocked;
    }

    public void setDatetimeUnlocked(String datetimeUnlocked) {
         this.datetimeUnlocked = datetimeUnlocked;
    }

}

您更新后的Admin 类必须如下所示

public class Admin {

    @SerializedName("adminId")
    private long adminID;

    @SerializedName("fullName")
    private String adminFullName;

    @SerializedName("email")
    private String adminEmail;

    @SerializedName("dob")
    private String adminDOB;

    @SerializedName("mobileNumber")
    private String adminMobileNumber;

    @SerializedName("usages")
    private List<Usage> usages;

    // Constructor
    public Admin(long adminID, String adminFullName, String adminEmail, String adminDOB, String adminMobileNumber, List<Usage> usages) {
        this.adminID = adminID;
        this.adminFullName = adminFullName;
        this.adminEmail = adminEmail;
        this.adminDOB = adminDOB;
        this.adminMobileNumber = adminMobileNumber;
        this.usages = usages;
    }

    // Getter
    public long getAdminID() {
        return adminID;
    }

    public String getAdminFullName() {
        return adminFullName;
    }

    public String getAdminEmail() {
        return adminEmail;
    }

    public String getAdminDOB() {
        return adminDOB;
    }

    public String getAdminMobileNumber() {
        return adminMobileNumber;
    }

    public List<Usage> getUsages() {
        return usages;
    }
}