怎么把页面传过来的JSON数组转换成list
最新回答
很酷的小当家
2025-03-30 02:52:43
{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"email@123.com","id":22,"name":"tom"}
如果要将这个JSON字符串转换为Java数组，可以先将其包装成一个数组形式，然后再进行转换。代码如下：
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"}," + "\"email\":\"email@123.com\",\"id\":22,\"name\":\"tom\"}";
@Test
public void readJSON2Array() {
try {
json = "[" + json + "]";
jsonArray = JSONArray.fromObject(json);
Object[] os = jsonArray.toArray();
System.out.println(os.length);
Student[] stus = (Student[]) JSONArray.toArray(jsonArray, Student.class);
System.out.println(stus.length);
System.out.println(stus[0]);
} catch (Exception e) {
e.printStackTrace();
}
}
运行结果：
JSON Array String >>> Java Array
1
{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"email@123.com","id":22,"name":"tom"}
1
接下来，如果要将JSON字符串转换为Java的List集合，可以使用类似的方法。代码如下：
private String json = "{\"address\":\"chian\",\"birthday\":{\"birthday\":\"2010-11-22\"}," + "\"email\":\"email@123.com\",\"id\":22,\"name\":\"tom\"}";
public void readJSON2List() {
try {
json = "[" + json + "]";
jsonArray = JSONArray.fromObject(json);
List list = JSONArray.toList(jsonArray, Student.class);
System.out.println(list.size());
System.out.println(list.get(0));
list = JSONArray.toList(jsonArray);
System.out.println(list.size());
System.out.println(list.get(0));
} catch (Exception e) {
e.printStackTrace();
}
}
运行结果：
JSON Array String >>> Java List
1
{"address":"chian","birthday":{"birthday":"2010-11-22"},"email":"email@123.com","id":22,"name":"tom"}
1
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