由 jsonschema2pojo.org 为 Json 对象生成的奇怪 Pojo



这是我第一次在这里发布问题:

我有这种 json 结构:

    "{  "element": ["
        + "    {"
        + "      "name": "name1",n"
        + "      "value": "Married"n"
        + "    },"
        + "    {"
        + "      "name": "name2",n"
        + "      "value": 0n"
        + "    },"
        + "    {"
        + "      "name": "name3",n"
        + "      "value": 0n"
        + "    }"
        + "  ] }"

生成的 POJO 如下所示:

public class Element {
    private String name;
    private String value;
    private Map<String, Object> additionalProperties = new HashMap<String, Object>();
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getValue() {
        return value;
    }
    public void setValue(String value) {
        this.value = value;
    }
}

如果只有一个名称值属性,如POJO所示,我知道设置这些属性很简单,比如element.setName(),element.setValue。

但是我如何在此 POJO 中设置值以生成 Json 结构作为我的示例?

似乎你只是忘记了它生成的第二个类。对于您的 json:

{
    "element": [ 
      { "name": "name1",
        "value": "Married"
      }, 
      { "name": "name2",
        "value": 0
      },
      { "name": "name3",
        "value": 0
      }  ]
}

该工具 http://www.jsonschema2pojo.org/生成以下代码(设置为 Jackson 2.x 批注和源类型 JSON 时):

-----------------------------------com.example.Elemant.java-----------------------------------
package com.example;
import java.util.HashMap;
import java.util.Map;
import javax.annotation.Generated;
import com.fasterxml.jackson.annotation.JsonAnyGetter;
import com.fasterxml.jackson.annotation.JsonAnySetter;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@JsonInclude(JsonInclude.Include.NON_NULL)
@Generated("com.googlecode.jsonschema2pojo")
@JsonPropertyOrder({
"name",
"value"
})
public class Elemant {
@JsonProperty("name")
private String name;
@JsonProperty("value")
private Integer value;
private Map<String, Object> additionalProperties = new HashMap<String, Object>();
@JsonProperty("name")
public String getName() {
return name;
}
@JsonProperty("name")
public void setName(String name) {
this.name = name;
}
@JsonProperty("value")
public Integer getValue() {
return value;
}
@JsonProperty("value")
public void setValue(Integer value) {
this.value = value;
}
@JsonAnyGetter
public Map<String, Object> getAdditionalProperties() {
return this.additionalProperties;
}
@JsonAnySetter
public void setAdditionalProperties(String name, Object value) {
this.additionalProperties.put(name, value);
}
}
-----------------------------------com.example.Example.java-----------------------------------
package com.example;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Generated;
import com.fasterxml.jackson.annotation.JsonAnyGetter;
import com.fasterxml.jackson.annotation.JsonAnySetter;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
@JsonInclude(JsonInclude.Include.NON_NULL)
@Generated("com.googlecode.jsonschema2pojo")
@JsonPropertyOrder({
"element"
})
public class Example {
@JsonProperty("element")
private List<Elemant> element = new ArrayList<Elemant>();
private Map<String, Object> additionalProperties = new HashMap<String, Object>();
@JsonProperty("element")
public List<Elemant> getElement() {
return element;
}
@JsonProperty("element")
public void setElement(List<Elemant> element) {
this.element = element;
}
@JsonAnyGetter
public Map<String, Object> getAdditionalProperties() {
return this.additionalProperties;
}
@JsonAnySetter
public void setAdditionalProperties(String name, Object value) {
this.additionalProperties.put(name, value);
}
}

所以实际上类Example是你想要的POJO,它包含Element POJO的列表。 Element是为数组中的对象类型生成的 POJO。请注意,该类称为 Example,因为这是 jsonschema2pojo.org 设置的顶级对象的默认名称。您可以在右侧的输入字段中进行更改。

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