android开发中Gson解析复杂json
这段时间在公司做项目时，用到了gson解析比较复杂的json字符串数据，由于小白一个在网上找了各种文章解决这个问题，最后都以失败告终，后来自己琢磨了一番终于搞定了，如有不对的地方请大家多多指正。
1.首先准备我要解析的json字符串
"Status": 100,
"Code": null,
"Message": null,
"Body": {
"listUser": [
{
"py": "A",
"childList": [
{
"UserID": "B9AD0603-62BC-414F-A40C-ACECF64093F9",
"UserName": "安卓测试",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "30B1AA95-855E-4CB5-A648-8861F793AD1D",
"DeptName": "站长办",
"PostName": "惠州市中心血站系统管理员",
"Sort": "A",
"Total": 0
},
{
"UserID": "DC9E7F9F-8158-4A9E-B376-A25DE1BAF8D1",
"UserName": "ABC",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "D4DBE8C8-133F-48DA-8D19-FC3EFADA36C1",
"DeptName": "临床用血管理『发血』科",
"PostName": "惠州市中心血站站长",
"Sort": "A",
"Total": 0
}
]
},
{
"py": "H",
"childList": [
{
"UserID": "4fb2d232-2def-46b0-ba47-5b3d290b0419",
"UserName": "红尘",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "D4DBE8C8-133F-48DA-8D19-FC3EFADA36C1",
"DeptName": "临床用血管理『发血』科",
"PostName": "惠州市中心血站站长",
"Sort": "H",
"Total": 0
}
]
},
{
"py": "S",
"childList": [
{
"UserID": "be371055-d601-4150-b801-d9ee17be1a82",
"UserName": "苏瑞",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "30B1AA95-855E-4CB5-A648-8861F793AD1D",
"DeptName": "站长办",
"PostName": null,
"Sort": "S",
"Total": 0
}
]
},
{
"py": "T",
"childList": [
{
"UserID": "6DFD1482-4E42-4F91-BFC3-9A49297F85C4",
"UserName": "test",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "D4DBE8C8-133F-48DA-8D19-FC3EFADA36C1",
"DeptName": "临床用血管理『发血』科",
"PostName": null,
"Sort": "T",
"Total": 0
}
]
},
{
"py": "X",
"childList": [
{
"UserID": "7791350F-F277-45A0-B9C2-B5CA514344FE",
"UserName": "系统管理员",
"PicUrl": "http://suruitest.oss-cn-shenzhen.aliyuncs.com/Surui/%E5%A4%B4%E5%83%8F/%E7%94%B7.jpg",
"OrgName": "惠州市中心血站",
"DeptID": "30B1AA95-855E-4CB5-A648-8861F793AD1D",
"DeptName": "站长办",
"PostName": "惠州市中心血站系统管理员",
"Sort": "X",
"Total": 0
}
]
}
]
}
}2.将json字符串转换成实体类
有一个比较好用的工具提供给大家
点击这里：Json转javabean实体类
实体类代码如下
注意：java实体类必须写成内部类，而且不能是静态的（切记不然无法解析）
import java.util.List;
/**
* Created by Yongjie on 2016/7/17.
*/
public class RootBean {
private int Status;
private String Code;
private String Message;
private Body Body;
public void setStatus(int Status) {
this.Status = Status;
}
public int getStatus() {
return this.Status;
}
public void setCode(String Code) {
this.Code = Code;
}
public String getCode() {
return this.Code;
}
public void setMessage(String Message) {
this.Message = Message;
}
public String getMessage() {
return this.Message;
}
public void setBody(Body Body) {
this.Body = Body;
}
public Body getBody() {
return this.Body;
}
//--------------------------------------------------------------
public class ChildList {
private String UserID;
private String UserName;
private String PicUrl;
private String OrgName;
private String DeptID;
private String DeptName;
private String PostName;
private String Sort;
private int Total;
public void setUserID(String UserID) {
this.UserID = UserID;
}
public String getUserID() {
return this.UserID;
}
public void setUserName(String UserName) {
this.UserName = UserName;
}
public String getUserName() {
return this.UserName;
}
public void setPicUrl(String PicUrl) {
this.PicUrl = PicUrl;
}
public String getPicUrl() {
return this.PicUrl;
}
public void setOrgName(String OrgName) {
this.OrgName = OrgName;
}
public String getOrgName() {
return this.OrgName;
}
public void setDeptID(String DeptID) {
this.DeptID = DeptID;
}
public String getDeptID() {
return this.DeptID;
}
public void setDeptName(String DeptName) {
this.DeptName = DeptName;
}
public String getDeptName() {
return this.DeptName;
}
public void setPostName(String PostName) {
this.PostName = PostName;
}
public String getPostName() {
return this.PostName;
}
public void setSort(String Sort) {
this.Sort = Sort;
}
public String getSort() {
return this.Sort;
}
public void setTotal(int Total) {
this.Total = Total;
}
public int getTotal() {
return this.Total;
}
}
//--------------------------------------------------------------
public class ListUser {
private String py;
private List<ChildList> childList;
public void setPy(String py) {
this.py = py;
}
public String getPy() {
return this.py;
}
public void setChildList(List<ChildList> childList) {
this.childList = childList;
}
public List<ChildList> getChildList() {
return this.childList;
}
}
public class Body {
private List<ListUser> listUser;
public void setListUser(List<ListUser> listUser) {
this.listUser = listUser;
}
public List<ListUser> getListUser() {
return this.listUser;
}
}
}3.将gson.jar包导入到libs下
4.测试代码
String json = "上面那串json字符串";
//1.先new Gson
Gson gson = new Gson();
//2.把json字符串转Bean实例
RootBean rootBean = gson.fromJson(json, RootBean.class);
//3.从实例中取得Body
RootBean.Body body = rootBean.getBody();
//4.再从Body中取大数组listUser
List<RootBean.ListUser> listUser = body.getListUser();
//5.循环遍历取子集合
for (RootBean.ListUser ls : listUser) {
List<RootBean.ChildList> childList = ls.getChildList();
//6.//循环遍历子集合取其元素
for (RootBean.ChildList cls : childList) {
String userName = cls.getUserName();
String deptName = cls.getDeptName();
String orgName = cls.getOrgName();
System.out.println("userName:" + userName);
System.out.println("deptName:" + deptName);
System.out.println("orgName:" + orgName);
}
}4.运行结果
userName:安卓测试
deptName:站长办
orgName:惠州市中心血站
userName:ABC
deptName:临床用血管理『发血』科
orgName:惠州市中心血站
userName:红尘
deptName:临床用血管理『发血』科
orgName:惠州市中心血站
userName:苏瑞
deptName:站长办
orgName:惠州市中心血站
userName:test
deptName:临床用血管理『发血』科
orgName:惠州市中心血站
userName:系统管理员
deptName:站长办
orgName:惠州市中心血站最后：感谢大家阅读，转载请指明原处。