add Trajectory 轨迹数据保存

src/main/java/com/fdkankan/openApi/controller/www/TrajectoryController.java

@@ -37,8 +37,8 @@ public class TrajectoryController {
     @PostMapping("/save")
     @ValidateApi(method = "trajectory:save")
     public ResultData save(@RequestBody @Valid TrajectoryParamVO param) throws IOException {
-        if(StrUtil.isNotEmpty(param.getContent())){
-            String[] split = param.getContent().split(",");
+        if(StrUtil.isNotEmpty(param.getPosition())){
+            String[] split = param.getPosition().split(",");
             if (split.length!=4){
                 throw new BusinessException(-1,"数据长度不为4");
             }