解决问题的思路：

1、分析比对http请求头，contentType等设置

2、前段编码，后端解码，这个方式比较落麻烦，凡是有中文乱码的地方都要进行解决

3、修改Tomcat的默认编码，tomcat8以下默认编码是"iso8859-1"，tomcat8默认编码是“UTF-8”

4、查看应用的web.xml默认编码是否是"UTF-8"以下是后端强制转码配置

             
      
       Set Character Encoding
              
      
       org.springframework.web.filter.CharacterEncodingFilter
              
                  
       
        encoding
                   
       
        UTF-8
               
              
                  
       
        forceEncoding
                   
       
        true
       
               
          
         
             
      
       Set Character Encoding
              
      
       /*
              
      
       REQUEST
              
      
       FORWARD
          
     

 按照此种写法HttpServletRequest和HttpServletResponse在控制层是不可缺少的，否则有乱码

/**数据透传下发记录*/    @RequestMapping("sendTransparentinfoSendCmd")    public Object sendTransparentinfoSendCmd(TransparentinfoSendlog transparentinfoSendlog,HttpServletResponse response,HttpServletRequest request){        if(transparentinfoSendlog.getVehicleId()==null){            // 未选择车辆            return setReturnMap(false, HttpCode.NO_SELECT_VEHICLE.value());        }        String sim=terminalService.findMobileCodeByVehicleId(transparentinfoSendlog.getVehicleId()+"");        if(sim==null||sim.equals("")){            return setReturnMap(false, HttpCode.ORDER_SEND_NO_SIM.value());        }        if(transparentinfoSendlog.getEnterpriseId()==null){            // 没有公司ID            return setReturnMap(false, HttpCode.BAD_REQUEST_ENTERPRISE.value());        }        // 存储数据透传下发发送日志        OrderInfo orderInfo=new OrderInfo();        orderInfo.setId(com.cvnavi.util.WebUtil.getPK());        User user = WebExecutionContext.getUser();        orderInfo.setUserId(user.getId());//设置userId        // 设置指令ID        transparentinfoSendlog.setOrderId(orderInfo.getId());        boolean flag=iTransparentinfoService.insertTransparentinfoSendlog(transparentinfoSendlog);        if(!flag){            return setReturnMap(false, HttpCode.BAD_REQUEST.value());//请求错误        }        // 发送指令到网关        orderInfo=iOrderInfoService.sendTransparentinfoSendlogCmd(orderInfo,transparentinfoSendlog);        if(orderInfo==null){            return setReturnMap(false, HttpCode.BAD_REQUEST.value());//请求错误        }        if("0".equals(orderInfo.getStatus())){            return setReturnMap(false, HttpCode.NO_VEHICLE_ONLINE.value());//车辆不在线        }else if("-1".equals(orderInfo.getStatus())){            return setReturnMap(false, HttpCode.ORDER_SEND_FAIL.value());//指令发送失败        }        return setReturnMap(true, HttpCode.OK.value());    }