我有一个对象，它的属性是一个List。我想把这个对象从Postman发送到我的服务。我使用的是Spring 5.2.7（Spring MVC，不是SpringBoot）和Hibernate 5.4.17以及Java 8。我的问题与此非常相似：I want to send a Postman POST request with an Array: members: ["william", "eric", "ryan"]
这是我试图在Postman中传递的类（POST方法）：

public class ChatDescriptionDto {

    private String chatID;

    private List<String> members;

    private String chatType;

    public String getChatID() {
        return chatID;
    }

    public void setChatID(String chatID) {
        this.chatID = chatID;
    }

    public List<String> getMembers() {
        return members;
    }

    public void setMembers(List<String> members) {
        this.members = members;
    }

    public void addMembers(List<String> members)
    {
        if(this.members == null)
            this.members = new ArrayList<>();
        this.members.addAll(members);
    }

    public void addMember(String member)
    {
        if(this.members == null)
            this.members = new ArrayList<>();
        this.members.add(member);
    }

    public String getChatType() {
        return chatType;
    }

    public void setChatType(String chatType) {
        this.chatType = chatType;
    }
}

我试过了，但没有成功：

{
    "chatID": "123",
    "members": ["P2001222833","P2001640916"],
    "chatType": "personal"
}

编辑：这是我的控制器：

@PostMapping("/initiateChat")
public String initiateChat(@RequestBody ChatDescriptionDto chat)
{
    return chatServiceLocal.initiateChat(chat)?"Chat Description created":"Failure! Could not save.";
}

编辑2：我在问题中写的方法"members": ["P2001222833","P2001640916"],是正确的。结果，服务器中有一些错误，所以它从来没有启动过，我没有检查。