我必须制作一个 Json,它将形成一个树状结构。我编写了一个 Java 代码,它正在形成一个这样的结构,但它不能满足目的。到目前为止,我已经在这里做了......这是我的 java 类。 .
import com.google.gson.FieldNamingStrategy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class GsonProgram {
public static void main(String... args) throws Exception {
String arr[] = {"Culture", "Salary", "Work", "Effort"};
EntryListContainer entryListContainer = new EntryListContainer();
List<Entry> entryList1 = new ArrayList<>();
for (int i = 0; i < arr.length; i++) {
Entry entry1 = new Entry();
Entry entry2 = new Entry();
entry1.setChildren(arr[i]);
entryList1.add(entry1);
entryList2.add(entry2);
entryListContainer.setEntryList1(entryList1);
entryListContainer.setEntryList1(entryList2);
/*Root node this will collapse and get back to Original position on click*/
entryListContainer.setName("Employee");
entryListContainer.setName("manager");
}
Map<String, String> mapping = new HashMap<>();
mapping.put("entryList1", "name");
mapping.put("entryList2", "name");
Gson gson = new GsonBuilder().serializeNulls().setFieldNamingStrategy(new DynamicFieldNamingStrategy(mapping)).create();
System.out.println(gson.toJson(entryListContainer));
}
} 类 DynamicFieldNamingStrategy 实现 FieldNamingStrategy {
private Map<String, String> mapping;
public DynamicFieldNamingStrategy(Map<String, String> mapping) {
this.mapping = mapping;
}
@Override
public String translateName(Field field) {
String newName = mapping.get(field.getName());
if (newName != null) {
return newName;
}
return field.getName();
}
}
class EntryListContainer {
private List<Entry> entryList1;
public void setEntryList1(List<Entry> entryList1) {
this.entryList1 = entryList1;
}
public List<Entry> getEntryList1() {
return entryList1;
}
}
class Entry {
private String name;
public String getChildren() {
return name;
}
public void setChildren(String name) {
this.name = name;
}
}
这是生成的json
{
"name":[{
"name":"Salary"
},{
"name":"Salary"
},{
"name":"Work"
},{
"name":"Doller"
}]
}
但我想要这个结构......
{
"name":"Employee",
"children":[{
"name":"Salary"
},{
"name":"Salary"
},{
"name":"Work"
},{
"name":"Doller"
}]
}
我需要这种格式的 json。请大家帮忙....