如何将字符串反序列化为android中的对象

Question

如何在android中反序列化下面的字符串。我在下面尝试过

String json= ls.get(j).getCwc();
Example example = new Gson().fromJson(json,Example.class);

Json

[{
  "company":"gjjzh",
  "AvgSal":"hjsj"
},
{
  "company":"hjd",
  "AvgSal":"hjd"
},
{
  "company":"hm",
  "AvgSal":"lk"
},
{
  "company":"er",
  "AvgSal":"io"
},
{
  "company":"uo",
  "AvgSal":"tr"
}]

Answer 1

String json= ls.get(j).getCwc();
Type type = new TypeToken<List<Example>>(){}.getType();
List<Example> example = new Gson().fromJson(json,type);

Example 在哪里

public class Example {

@SerializedName("company")
@Expose
private String company;
@SerializedName("AvgSal")
@Expose
private String avgSal;

public String getCompany() {
return company;
}

public void setCompany(String company) {
this.company = company;
}

public String getAvgSal() {
return avgSal;
}

public void setAvgSal(String avgSal) {
this.avgSal = avgSal;
}

}

Answer 2

您需要为对象创建一个模型类。

Example.java

public class Example{
    String company = "";
    String AvgSal = "";
}

然后您需要编写如下代码将JSONArray字符串转换为List<Model>。

String json= ls.get(j).getCwc();
Type modelListType = new TypeToken<ArrayList<Example>>(){}.getType();
ArrayList<Example> modelList = new Gson().fromJson(json, modelListType);

这会将JSONArray 转换为ArrayList。