根据集合转换成JsonArray[Gson工具包]集合,然后通过Gson工具类直接遍历转化List实体对象的过程。
//模拟服务端json数据
String json = "[\n" +
" {\n" +
" \"name\": \"张三\",\n" +
" \"code\": \"zhangsan\"\n" +
" },\n" +
" {\n" +
" \"name\": \"李四\",\n" +
" \"code\": \"lisi\"\n" +
" },\n" +
" {\n" +
" \"name\": \"王五\",\n" +
" \"code\": \"wangwu\"\n" +
" }\n" +
" ]";
List<PeopleInfo> peopleInfoList = parseString2List(json,PeopleInfo.class);
/**
* Gson字符串数组转成List对象[泛型操作]
* author: JayGengi 60167
* email: gengy@chinaraising.com
* time: 2018/04/13 10:01
*/
public <T> List<T> parseString2List(String json,Class clazz) {
//泛型转换
Type type = new ParameterizedTypeImpl(clazz);
List<T> list = new Gson().fromJson(json, type);
return list;
}
/**
* Gson解析不支持泛型,利用ParameterizedType获取泛型参数类型
* author: JayGengi 60167
* email: gengy@chinaraising.com
* time: 2018/04/13 10:01
*/
private class ParameterizedTypeImpl implements ParameterizedType {
Class clazz;
public ParameterizedTypeImpl(Class clz) {
clazz = clz;
}
@Override
public Type[] getActualTypeArguments() {
//返回实际类型组成的数据
return new Type[]{clazz};
}
@Override
public Type getRawType() {
//返回原生类型,即HashMap
return List.class;
}
@Override
public Type getOwnerType() {
//返回Type对象
return null;
}
}