绿通图片接口，多线程取图片逻辑修改，修改图片存放顺序

src/main/java/com/nmgs/service/impl/GreenTrafficServiceImpl.java

@@ -272,6 +272,7 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
         //从配置文件中读取数据库连接类型
         params.put("DBTYPE", PropertiesUtil.getValue("DBType"));
 
+        JSONArray jsonArray = new JSONArray();
         List<String> picList = new ArrayList<>();
 
         //如果流水号没有的话，直接返回失败
@@ -293,6 +294,7 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
 
             logger.info("取图片轮次=======round======="+round);
 
+
             //定义同步工具，每轮五个线程
             CountDownLatch countDownLatch = new CountDownLatch(5); // 同步工具
 
@@ -302,6 +304,15 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
             //定义每一轮 取的时候从第几个下标开始取 1  6  11
             int position = ((round-1)*taskCount)+1;
 
+
+            //给jsonArray增加5张图片位置，让图片按照顺序放置
+            for (int j = position-1 ; j < getOver ; j++){
+                JSONArray pic = new JSONArray();
+                pic.add("");
+                pic.add("");
+                jsonArray.add(pic);
+            }
+
             //循环开启5个线程取图片
             for (int i = position ; i <= getOver;i++) {
 
@@ -309,10 +320,18 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
                 Map<String, Object> paramsWebService = new HashMap<>();
                 paramsWebService.put("listNO", params.get("listNo")+"_"+i);
                 paramsWebService.put("imgType", "1");
+
                 //执行线程
+
+                //定义每张图片要放置的位置，避免顺序错乱
+                int finalI = i-1;
                 greenTrafficThreadPool.execute( () -> {
                     try {
-                        picList.add(getPic(paramsWebService));
+                        //取出该位置的JSONArray，放置图片
+                        JSONArray pic = (JSONArray) jsonArray.get(finalI);
+                        pic.set(1,getPic(paramsWebService));
+                        jsonArray.set(finalI,pic);
+
                     } catch (Exception e) {
                         logger.info("获取图片失败========"+e);
                         picList.add("");
@@ -327,8 +346,9 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
             logger.info("主线程工作结束==============");
 
             //遍历数据，是否有空，有空就停止执行
-            for (String pic : picList) {
-                if("".equals(pic)){
+            for (Object pic : jsonArray) {
+                JSONArray obj = (JSONArray) pic;
+                if("".equals(obj.get(1))){
                     isStop = false;
                     break;
                 }
@@ -338,14 +358,12 @@ public class GreenTrafficServiceImpl implements IGreenTrafficService {
             logger.info("是否停止取图片=======isStop======="+isStop);
         }
 
-        //封装数据，为空的跳过
-        JSONArray jsonArray = new JSONArray();
-        for (String picUrl : picList) {
-            if(!"".equals(picUrl)){
-                JSONArray jsonArrayPic = new JSONArray();
-                jsonArrayPic.add("");
-                jsonArrayPic.add(picUrl);
-                jsonArray.add(jsonArrayPic);
+        //封装数据，为空的删除
+        for (int i = 0 ; i < jsonArray.size() ; i++) {
+            JSONArray obj = (JSONArray) jsonArray.get(i);
+            if("".equals(obj.get(1))){
+                jsonArray.remove(i);
+                i--;
             }
         }
         //设置数据