Json格式化解析

近期一个项目需要将解密后的json文件转换为有格式的txt文件，尝试写了一个demo，放代码。

 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONArray;
 import com.alibaba.fastjson.JSONObject;
 
 
import java.io.BufferedReader;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 
 
/**
 
 
 
  
 
Created by hexz on 2017/4/25.
 */
 public class Main {
 public static void main(String[] args) throws Exception{
 String path = "C:\Users\hexz\Desktop\testdata\dakehu_decrypt.json";
 FileInputStream fileInputStream = new FileInputStream(path);
 InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream);
 BufferedReader reader =new BufferedReader(inputStreamReader);
 String tempString = null;
 StringBuilder laststr = new StringBuilder();
 while ((tempString = reader.readLine()) != null){
 laststr.append(jsonParse(tempString));
 }
 reader.close();
 System.out.println(laststr);
 }
 public static String jsonParse(String jsonfile) throws Exception{
 StringBuilder jsonSB = new StringBuilder();
 String jsonString = "";
 
 JSONObject jsonObject = (JSONObject) JSON.parse(jsonfile);

 JSONArray jsonArray = jsonObject.getJSONArray("assetInfos");
 for (int i =0; i < jsonArray.size(); i++){
     jsonSB.append(jsonObject.getString("licenseCustomerId"));
     jsonSB.append("\t");
     jsonSB.append(jsonObject.getString("branchName"));
     jsonSB.append("\t");
     jsonSB.append(jsonObject.getString("crmCustomerId"));
     jsonSB.append("\t");

     JSONObject assetInfos =jsonArray.getJSONObject(i);
     String assetFullNumber = assetInfos.getString("assetFullNumber");
     if(assetFullNumber == null) {
         assetFullNumber = "null";
     }
     jsonSB.append(assetFullNumber);
     jsonSB.append("\t");

     String assetShellNumber = assetInfos.getString("assetShellNumber");
     if(assetInfos.getString("assetShellNumber") == "") {
         assetShellNumber = "null";
     }
     jsonSB.append(assetShellNumber);
     jsonSB.append("\t");

     String assetLicenseType = assetInfos.getString("assetLicenseType");
     if(assetInfos.getString("assetLicenseType") == "") {
         assetLicenseType = "null";
     }
     jsonSB.append(assetLicenseType);
     jsonSB.append("\t");
     String assetCreateTime = assetInfos.getString("assetCreateTime");
     if(assetInfos.getString("assetCreateTime") == "") {

         assetCreateTime = "null";
     }
     jsonSB.append(assetCreateTime);
     jsonSB.append("\t");
     String assetUpdateTime = assetInfos.getString("assetUpdateTime");
     if(assetInfos.getString("assetUpdateTime") == "") {

         assetUpdateTime = "null";
     }
     jsonSB.append(assetUpdateTime);
     jsonSB.append("\t");
     String assetEffectiveStartDate = assetInfos.getString("assetEffectiveStartDate");
     if(assetInfos.getString("assetEffectiveStartDate") == "") {

         assetEffectiveStartDate = "null";
     }
     jsonSB.append(assetEffectiveStartDate);
     jsonSB.append("\t");
     String assetEffectiveEndDate = assetInfos.getString("assetEffectiveEndDate");
     if(assetInfos.getString("assetEffectiveEndDate") == "") {

         assetEffectiveEndDate = "null";
     }
     jsonSB.append(assetEffectiveEndDate);
     jsonSB.append("\t");
     String assetLimitConcurrent = assetInfos.getString("assetLimitConcurrent");
     if(assetInfos.getString("assetLimitConcurrent") == "") {

         assetLimitConcurrent = "null";
     }
     jsonSB.append(assetLimitConcurrent);
     jsonSB.append("\t");
     String assetAssignStatus = assetInfos.getString("assetAssignStatus");
     if(assetInfos.getString("assetAssignStatus") == "") {

         assetAssignStatus = "null";
     }
     jsonSB.append(assetAssignStatus);
     jsonSB.append("\t");
     String employeeName = assetInfos.getString("employeeName");
     if(assetInfos.getString("employeeName") == "") {

         employeeName = "null";
     }
     jsonSB.append(employeeName);
     jsonSB.append("\t");
     String employeeEmail = assetInfos.getString("employeeEmail");
     if(assetInfos.getString("employeeEmail") == "") {

         employeeEmail = "null";
     }
     jsonSB.append(employeeEmail);
     jsonSB.append("\t");
     String employeeCellNumber = assetInfos.getString("employeeCellNumber");
     if(assetInfos.getString("employeeCellNumber") == "") {

         employeeCellNumber = "null";
     }
     jsonSB.append(employeeCellNumber);
     jsonSB.append("\t");
     String employeeUpdateTime = assetInfos.getString("employeeUpdateTime");
     if(assetInfos.getString("employeeUpdateTime") == "") {

         employeeUpdateTime = "null";
     }
     jsonSB.append(employeeUpdateTime);
     jsonSB.append("\t");
     String locked = assetInfos.getString("locked");
     if(assetInfos.getString("locked") == "") {

         locked = "null";
     }
     jsonSB.append(locked);
     jsonSB.append("\t");
     String employeeGlobalId = assetInfos.getString("employeeGlobalId");
     if(assetInfos.getString("employeeGlobalId") == "") {

         employeeGlobalId = "null";
     }
     jsonSB.append(employeeGlobalId);

     jsonSB.append("\t");
     jsonSB.append("\r\n");
 }
 jsonString = jsonSB.toString();
 return jsonString;
 
}
 }