前后端互相传值

Posted 2021-02-02 hazsly

前端到后端：

1.用AJAXdata传值，后端用实体类对应对象或者HttpServletRequest 接收String类型字段，如：

@ResponseBody
@RequestMapping("/insertOrUpdate")
public Object insertOrUpdate(Collecter collecter,HttpServletRequest request){
  collecterService.insertOrUpdate(collecter);
  int i;
  String wgh = request.getParameter("wgh");
  if(null!=wgh && ""!=wgh){
      collGridService.deleteByUserCode(collecter.getId());
      String[] wghArray =wgh.split(",");
      for(i=0;i<wghArray.length;i++){
          CollGrid collGrid = new CollGrid();
          collGrid.setUserCode(collecter.getId());
          collGrid.setWorkGridCode(wghArray[i]);
          collGridService.insertOrUpdate(collGrid);
      }
  }
  return null;
}

2.layui等插件弹出框url跳转路径后拼接属性和值，如：

/** 新增部门信息弹窗操作*/
$(‘#add‘).click(function () {
    parent.layer.open({
        type: 2,
        closeBtn: 1, //显示关闭按钮
        anim: 1,
        shade: 0.3,
        title: "新增职能部门",
        shadeClose: false,
        area: [‘1000px‘, ‘500px‘],
        shift: 1,
        scrollbar: false,
        content:$path(‘/depart/addDeparthtml?departName=‘ + $("#departName").val() + ‘&departCode=‘ + $("#departCode").val()),
        end:function () {
            var tDepartCode = parentTree.ltree.getSelectedNode().departCode;
            lTree.refreshSelectedParentNodes();
            lTree.refreshChildNodes(lTree.zTree.getNodesByParam("departCode", tDepartCode)[0].tId);
            parentTree.ltree.zTree.reAsyncChildNodes(null, "refresh");
        }
    });
});

后端到前端：

1.通过ModelAndView，Model赋值<K,V>，view客户端跳转url，如：

@GetMapping("/addDepartHtml")
public ModelAndView addDepartHtml(HttpServletRequest request){
    ModelAndView model = new ModelAndView("yywh/depart/addDepart");
    model.addObject("parentName",request.getParameter("departName"));
    model.addObject("departCode",request.getParameter("departCode"));
    /** 生成部门排序号*/
    Long orderNum = Long.valueOf(request.getParameter("departCode"));
    model.addObject("orderNum",departService.createOrderNum(orderNum));
    return model;
}