fastjson 使用记录
参考:
https://www.cnblogs.com/cdf-opensource-007/p/7106018.html
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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 = "[\n" + " {\n" + " \"astnamebyuser\": \"资产名称1\",\n" + " \"ip\": 10,\n" + " \"port\": \"\",\n" + " \"companytypeid\": \"\",//组织机构一级导航id\n" + " \"deptid\": \"\",//组织架构二级导航id\n" + " \"infosysid\": \"\",//信息系统id\n" + " \"devicetypeid\": \"\",//设备类型id\n" + " \"templategroupid\":\"\",//模板分组id\n" + " \"templateid\": \"\",//模板id\n" + " \"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\n" + " \"certificateusername\": \"\",//用户名\n" + " \"certificatepassword\": \"\",//密码\n" + " \"principal\": \"\",//维护人\n" + " \"department\": \"\",//所属部门\n" + " \"description\": \"\"//备注\n" + " },\n" + " {\n" + " \"astnamebyuser\": \"资产名称2\",\n" + " \"ip\": 11,\n" + " \"port\": \"\",\n" + " \"companytypeid\": \"\",//组织机构一级导航id\n" + " \"deptid\": \"\",//组织架构二级导航id\n" + " \"infosysid\": \"\",//信息系统id\n" + " \"devicetypeid\": \"\",//设备类型id\n" + " \"templategroupid\":\"\",//模板分组id\n" + " \"templateid\": \"\",//模板id\n" + " \"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\n" + " \"certificateusername\": \"\",//用户名\n" + " \"certificatepassword\": \"\",//密码\n" + " \"principal\": \"\",//维护人\n" + " \"department\": \"\",//所属部门\n" + " \"description\": \"\"//备注\n" + " }\n" + " ]"; 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
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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 = "{\n" + " \"ipgrouplist\":[\n" + " {\n" + " \"astnamebyuser\": \"资产名称1\",\n" + " \"ip\": \"192.168.1.1\",\n" + " \"port\": \"\",\n" + " \"companytypeid\": \"\",//组织机构一级导航id\n" + " \"deptid\": \"\",//组织架构二级导航id\n" + " \"infosysid\": \"\",//信息系统id\n" + " \"devicetypeid\": \"\",//设备类型id\n" + " \"templategroupid\":\"\",//模板分组id\n" + " \"templateid\": \"\",//模板id\n" + " \"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\n" + " \"certificateusername\": \"\",//用户名\n" + " \"certificatepassword\": \"\",//密码\n" + " \"principal\": \"\",//维护人\n" + " \"department\": \"\",//所属部门\n" + " \"description\": \"\"//备注\n" + " },\n" + " {\n" + " \"astnamebyuser\": \"资产名称2\",\n" + " \"ip\": \"192.168.1.2\",\n" + " \"port\": \"\",\n" + " \"companytypeid\": \"\",//组织机构一级导航id\n" + " \"deptid\": \"\",//组织架构二级导航id\n" + " \"infosysid\": \"\",//信息系统id\n" + " \"devicetypeid\": \"\",//设备类型id\n" + " \"templategroupid\":\"\",//模板分组id\n" + " \"templateid\": \"\",//模板id\n" + " \"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\n" + " \"certificateusername\": \"\",//用户名\n" + " \"certificatepassword\": \"\",//密码\n" + " \"principal\": \"\",//维护人\n" + " \"department\": \"\",//所属部门\n" + " \"description\": \"\"//备注\n" + " }\n" + " ],\n" + " \"ipgroupname\":\"ip组1\",\n" + " \"execmethod\":\"1\",\n" + " \"taskdescription\":\"描述\"\n" + "\n" + "}"; 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()); } } }
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