json 轉list 集合
阿新 • • 發佈:2019-02-15
好久沒寫部落格 了,雖然寫的一塌糊塗吧,但也得堅持。今天遇到json 轉list集合的問題,隨便就記一下
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
pom.xml 檔案:
<!-- json依賴 -->
<dependency>
<groupId>net.sf.json-lib</groupId>
<artifactId>json-lib</artifactId>
<classifier>jdk15</classifier>
</dependency>
<dependency>
<groupId>net.sf.ezmorph</groupId>
<artifactId>ezmorph</artifactId>
</dependency>
<dependency>
<groupId> commons-collections</groupId>
<artifactId>commons-collections</artifactId>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
</dependency >
<!-- json依賴 end -->
對應版本
<json-lib.version>2.4</json-lib.version>
<ezmorph.version>1.0.6</ezmorph.version>
<commons-collections.version>3.2.1</commons-collections.version>
<commons-beanutils.version>1.9.3</commons-beanutils.version>
java
customized 值為: [{“cusId”:”999”,”orderNum”:1},{“cusId”:”998”,”orderNum”:2}]
String customized = " [{\"cusId\":\"999\",\"orderNum\":1},{\"cusId\":\"998\",\"orderNum\":2}]"
List<Customized> list1 = new ArrayList();
// 先把json 字串轉換為json 陣列
JSONArray jsonArray1 = JSONArray.fromObject(customized);
//迴圈獲取json陣列中的 json 物件,然後轉換為 object
for (int i = 0; i < jsonArray1.size(); i++) {
JSONObject jsonObject2 = jsonArray1.getJSONObject(i);
Customized cust = (Customized) JSONObject.toBean(jsonObject2, Customized.class);
list1.add(cust);
}
json 字串中的屬性 必須 和 Customized 物件中的屬性一一對應