生成快照文件的bug

Author: onblog

JavaMonitorPlus/client/src/main/java/cn/yueshutong/client/core/order/Jmap.java

@@ -16,15 +16,18 @@ public class Jmap {
      * @return
      */
     public static String dump(String id){
-        String path = PathUtil.getRootPath("dump/"+id+"_heap.hprof");
+        //检验dump目录是否存在
         File file = new File(PathUtil.getRootPath("dump/"));
         if (!file.exists()){
             file.mkdirs();
         }
+        //若有已经存在的快照文件则删除
+        String path = PathUtil.getRootPath("dump/"+id+"_heap.hprof");
         File file1 = new File(path);
         if (file1.exists()){
             file1.delete();
         }
+        //生成快照文件
         ExecuteCmd.execute(new String[]{"jmap","-dump:format=b,file="+path, id});
         return path;
     }