[add] 态势监测-雷达图过滤展示bug

signal-optimize-service/src/main/java/net/wanji/opt/servicev2/implv2/TrendServiceV2Impl.java

@@ -360,15 +360,15 @@ public class TrendServiceV2Impl implements TrendServiceV2 {
                     result.setCountRate((int) (Math.round(countRate * 100) ));
                     result.setDurationRate((int) (Math.round(durationRate * 100) ));
                     String greenDir = result.getGreenDir();
-                    StringBuilder stringBuilder = new StringBuilder();
                     if (!StringUtils.isEmpty(greenDir)) {
+                        StringBuilder stringBuilder = new StringBuilder();
                         for (String dir : greenDir.split(",")) {
                             stringBuilder.append(GreenBeltDirEnum.getCode(Integer.valueOf(dir))).append(",");
                         }
+                        int length = stringBuilder.length();
+                        String substring = stringBuilder.substring(0, length - 1);
+                        result.setGreenDir(substring);
                     }
-                    int length = stringBuilder.length();
-                    String substring = stringBuilder.substring(0, length - 1);
-                    result.setGreenDir(substring);
                 }
             }
         });