添加了可以继续下载

src/main/java/com/comleader/ldmapdownload/application/DownMap.java

@@ -46,11 +46,14 @@ public class DownMap implements ApplicationRunner {
     private int maxLv; // 最大层级
 
     @Value("${map.Lv6.flag}")
-    private boolean flag; // 记录前六级是否打开下载
+    private boolean lvFlag; // 记录前六级是否打开下载
+
+    @Value("${map.download.append}")
+    private boolean appendFlag; // 是否是继续下载
 
     @Override
     public void run(ApplicationArguments args) throws Exception {
-        if (flag){
+        if (lvFlag){
             return;
         }
 
@@ -163,11 +166,14 @@ public class DownMap implements ApplicationRunner {
             try {
                 //高德地图(6：影像，7：矢量，8：影像路网)
                 imgUrl = CLStringUtil.getImgUrl(z, x, y);
-                File file = CLStringUtil.getFullFile(z, x, y);
+                File file = appendFlag ? CLStringUtil.getFullFileNotExist(z,x,y):CLStringUtil.getFullFile(z, x, y);
 
                 // 开始下载地图
-                HttpUtil.downImageByGet(imgUrl, file);
-                return imgUrl + " Success";
+                if (file != null){
+                    HttpUtil.downImageByGet(imgUrl, file);
+                    return imgUrl + " Success";
+                }
+                return imgUrl + " Loaded";
             } catch (Exception e) {
                 //log.error(imgUrl + " Down Failed");
                 errResults.add("Failed: " + imgUrl + " ErrorMsg >> " + e.getMessage());

src/main/java/com/comleader/ldmapdownload/util/CLStringUtil.java

@@ -64,6 +64,29 @@ public class CLStringUtil {
         return FileUtil.file(fullFileName);
     }
 
+    /**
+     * @param z
+     * @param x
+     * @param y
+     * @description: 根据传入的 z\x\y来创建本地图片路径
+     * @return: java.lang.String
+     * @author: zhanghang
+     * @date: 2020/4/2
+     **/
+    public static File getFullFileNotExist(Integer z, Integer x, Integer y) {
+        String fullFileName;
+        if (MAP_TYPE == "ArcGIS"){
+            fullFileName = getArcGISFullFile(z,x,y);
+        }else {
+            fullFileName = BASE_PATH + z + File.separator + x + File.separator + y + ".png";
+        }
+        File file = new File(fullFileName);
+        if (file.exists()){
+            return null;
+        }
+        return FileUtil.file(fullFileName);
+    }
+
 
     /**
      * @param z

src/main/resources/config/download-map.properties

@@ -26,3 +26,6 @@ map.threadNum=1000
 
 # 是否下载前6级(不能与其余的同时进行)
 map.Lv6.flag=false
+
+# 是否继续下载
+map.download.append=false
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