fastjson 使用记录

参考：

https://www.cnblogs.com/cdf-opensource-007/p/7106018.html

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

public class JsonTest2 {

    public static void main(String[] args) {

        String arrContent = "[
" +
                "    {
" +
                "      "astnamebyuser": "资产名称1",
" +
                "      "ip": 10,
" +
                "      "port": "",
" +
                "      "companytypeid": "",//组织机构一级导航id
" +
                "      "deptid": "",//组织架构二级导航id
" +
                "      "infosysid": "",//信息系统id
" +
                "      "devicetypeid": "",//设备类型id
" +
                "      "templategroupid":"",//模板分组id
" +
                "      "templateid": "",//模板id
" +
                "      "templatename": "",//如果非自定义模板传null，如果是自定义模板传自定义名称
" +
                "      "certificateusername": "",//用户名
" +
                "      "certificatepassword": "",//密码
" +
                "      "principal": "",//维护人
" +
                "      "department": "",//所属部门
" +
                "      "description": ""//备注
" +
                "    },
" +
                "    {
" +
                "      "astnamebyuser": "资产名称2",
" +
                "      "ip": 11,
" +
                "      "port": "",
" +
                "      "companytypeid": "",//组织机构一级导航id
" +
                "      "deptid": "",//组织架构二级导航id
" +
                "      "infosysid": "",//信息系统id
" +
                "      "devicetypeid": "",//设备类型id
" +
                "      "templategroupid":"",//模板分组id
" +
                "      "templateid": "",//模板id
" +
                "      "templatename": "",//如果非自定义模板传null，如果是自定义模板传自定义名称
" +
                "      "certificateusername": "",//用户名
" +
                "      "certificatepassword": "",//密码
" +
                "      "principal": "",//维护人
" +
                "      "department": "",//所属部门
" +
                "      "description": ""//备注
" +
                "    }
" +
                "  ]";


        JSONArray jsonArray = JSON.parseArray(arrContent);
        for (Object obj :
                jsonArray) {
            JSONObject jsonObject = (JSONObject) obj;
//            这里要看传的是String还是Integer，得按照对应的数据类型来获取，否则会抛出异常
            System.out.println(jsonObject.getString("astnamebyuser")+" "+jsonObject.getInteger("ip"));
        }


    }

}

目前所在公司的前端一般一律传字符串，所以用起来还是挺方便的，直接 getString 就行了，不过如果传的是特定的数据类型，就得用特定的方法来获取，比如 integer类型的，就要用 getInteger 来进行获取

下面这个是把循环遍历中的obj通过getString/getInteger/其他获取数据类型的方法  来获取键的值，然后用bean的set方法进行赋值，最后对整个bean进行处理就行了

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.kinome.rm.bean.Assets;

public class JsonTest2 {

    public static void main(String[] args) {

        String content = "{
" +
                "  "ipgrouplist":[
" +
                "    {
" +
                "      "astnamebyuser": "资产名称1",
" +
                "      "ip": "192.168.1.1",
" +
                "      "port": "",
" +
                "      "companytypeid": "",//组织机构一级导航id
" +
                "      "deptid": "",//组织架构二级导航id
" +
                "      "infosysid": "",//信息系统id
" +
                "      "devicetypeid": "",//设备类型id
" +
                "      "templategroupid":"",//模板分组id
" +
                "      "templateid": "",//模板id
" +
                "      "templatename": "",//如果非自定义模板传null，如果是自定义模板传自定义名称
" +
                "      "certificateusername": "",//用户名
" +
                "      "certificatepassword": "",//密码
" +
                "      "principal": "",//维护人
" +
                "      "department": "",//所属部门
" +
                "      "description": ""//备注
" +
                "    },
" +
                "    {
" +
                "      "astnamebyuser": "资产名称2",
" +
                "      "ip": "192.168.1.2",
" +
                "      "port": "",
" +
                "      "companytypeid": "",//组织机构一级导航id
" +
                "      "deptid": "",//组织架构二级导航id
" +
                "      "infosysid": "",//信息系统id
" +
                "      "devicetypeid": "",//设备类型id
" +
                "      "templategroupid":"",//模板分组id
" +
                "      "templateid": "",//模板id
" +
                "      "templatename": "",//如果非自定义模板传null，如果是自定义模板传自定义名称
" +
                "      "certificateusername": "",//用户名
" +
                "      "certificatepassword": "",//密码
" +
                "      "principal": "",//维护人
" +
                "      "department": "",//所属部门
" +
                "      "description": ""//备注
" +
                "    }
" +
                "  ],
" +
                "  "ipgroupname":"ip组1",
" +
                "  "execmethod":"1",
" +
                "  "taskdescription":"描述"
" +
                "
" +
                "}";


        JSONObject parseObject = JSON.parseObject(content);
        JSONArray jsonArray = parseObject.getJSONArray("ipgrouplist");
        String ipgroupname = parseObject.getString("ipgroupname");
        String execmethod = parseObject.getString("execmethod");
        String taskdescription = parseObject.getString("taskdescription");
        Assets assets = new Assets();

        System.out.println(ipgroupname + " " + execmethod + " " + taskdescription);
        for (Object obj :
                jsonArray) {
            JSONObject jsonObject = (JSONObject) obj;
            assets.setIp(jsonObject.getString("ip"));
            System.out.println(jsonObject.toString());
        }


    }

}