从API中具有不同属性名称的JSON文件中获取对象

Question

我有一个这样的JSON文件：

{
    "rewrite_url_captures": [
        {
            "description": [
                "Captures arguments in a URL and rewrites the URL using these arguments. "
            ],
            "configuration": {},
            "name": "URL Rewriting with Captures"
        }
    ],
    "routing": [
        {
            "description": [],
            "configuration": {},
            "name": "Routing"
        }
    ],
    "soap": [
        {
            "description": [
                "This policy adds support for a very small subset of SOAP."
            ],
            "configuration": {},
            "name": "SOAP"
        }
    ]
}

我想得到这3个对象的名称：rewrite_url_captures，路由，肥皂。

我已经这么做了：

js prettyprint-override">import java.util.ArrayList;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonPropertyOrder({
    "rewrite_url_captures"
})
public class PoliciesTest {

    protected ArrayList<PolicyTest> policy;

    @JsonProperty("rewrite_url_captures")
    public ArrayList<PolicyTest> getPolicy() {
        if (policy == null) {
            policy = new ArrayList<PolicyTest>();
        }
        return this.policy;
    }
}

调用这个类：

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;

@JsonInclude(JsonInclude.Include.NON_NULL)
@JsonPropertyOrder({
        "name"
})
public class PolicyTest {

    @JsonProperty("name")
    private String name;

    public Object getName() {
        return name;
    }
}

我得到这个作为输出，所以它的工作原理：

输出

我的问题是，我只能通过修改PoliciesTest类中相应名称的JSON属性来逐个访问这3个对象，除非我希望同时将这3个对象作为输出，并且不能重载@JSONProperty。

以前有人面对过这个问题吗？

Answer 1

使用org.json库可能会解决您的问题。但是您必须手动从json中获取对象。