Java中前台往后台传多个id参数

Posted 2020-09-30 像艳遇一样忧伤c

在这里我罗列我用过的两种方式   记录  以备后用

1.传字符串的形式，字符串中每个id用 “，”  隔开

  打印出来如下形式：

    

前台JS代码

  

function saveRoleAdd()
 {
     
     var roleNames = $(\'#roleNames\').textbox("getText");
     var roleDetail = {};
         roleDetail.roleNames = roleNames;
     roleDetail.roleFunctionCount = 0;
        roleDetail.roleFunctionList = [];
     
        if(roleNames.length < 0 || roleNames.length == 0)
        {
            $.messager.alert("提示","请输入角色名");
            return;
        }
        
        
        var funNodeList = $(\'#roleFuntionTree\').tree(\'getChecked\', \'indeterminate\');
        var funLeafList = $(\'#roleFuntionTree\').tree(\'getChecked\');
     
     if(funNodeList.length <=0 && funLeafList.length <= 0)
     {
         $.messager.alert("提示","请选择权限节点");
            return;
     }
     
  
     Array.prototype.push.apply(funNodeList, funLeafList);  //将两个lis合并为一个数组
     
     var roleFunList = "";
     var roleFunNameList = "";
     for(var i=0; i < funNodeList.length; i++)
        {
            if (!isEmptyTarget(funNodeList[i].id))
          {
             if(!isEmptyTarget(roleFunList))
              {
                roleFunList += ",";     //拼接成用逗号隔开的字符串,里面是id
                roleFunNameList += ","; //拼接成用逗号隔开的字符串，里面text
              }
                roleFunList += funNodeList[i].id;
                roleFunNameList += funNodeList[i].text;
                
                var funDetail = {};
                funDetail.funId = parseInt(funNodeList[i].id);
                roleDetail.roleFunctionList.push(funDetail);        
          }
        }
     roleDetail.roleFunctionCount = roleDetail.roleFunctionList.length;  
     
     var rows = $("#tblRoleDetail").datagrid("getRows");
        for (var i = 0; i < rows.length; i++)
        {
            if (roleNames == rows[i].roleNames)
            {
                $.messager.alert("提示","重复的角色名!");
                return;
            }
        }
        
        $(\'#tblRoleDetail\').datagrid(\'appendRow\',
            {
                roleNames:roleNames,
                funId:roleFunNameList
             }
        );
        
         
            $.ajax(
            {
              type : "POST",
              url : "permiss-manager/setRoleDetail.action?_dc=" + Math.random(),
              data :
            {
                roleName:roleNames,
                roleDetailData : roleFunList,
            },
              dataType : "json",
            success : function(result)
            {
                $.messager.alert("提示",result.result);
                closeRoleAdd();
                refreshRoleSelectTree();
            }    
        });
                
         $(\'#rolePanel\').panel(\'refresh\', "afc/page/permission-manager/role-main.jsp");        
                                                                                                                                                                                                                                                                                                                                  
 }

 

后台Action方法代码

  

@Action("setRoleDetail")
    public void setRoleDetail()
    {
        webLogService.writeWebLog(ServletActionContext.getRequest().getSession().getAttribute("userId").toString(), "新增角色", ServletActionContext.getRequest().getRemoteAddr());

        String roleName = ServletActionContext.getRequest().getParameter("roleName");
        String roleDetailJsonData = ServletActionContext.getRequest().getParameter("roleDetailData");
       // 这一部分就是转成一个list。下面调用方式直接传一个list过去   
        List<Integer> funIdList = new ArrayList<Integer>();
        String [] arrar = StringUtils.split(roleDetailJsonData, ",");
        for (int i = 0; i < arrar.length; i++)
        {
            Integer funId = null;
            if(NumberUtils.isNumber(arrar[i]))
            {
                funId = NumberUtils.toInt(arrar[i]);
                funIdList.add(funId);
            }
            
        }    
        permissionService.setRole(roleName, funIdList);
        try
        {
            HttpServletResponse response = ServletActionContext.getResponse();
            response.setCharacterEncoding("utf-8");
            JSONObject result = new JSONObject();
            result.accumulate("result", "角色新增成功");
            response.getWriter().write(result.toString());

        } catch (Exception e)
        {
            e.printStackTrace();
        }

    }

 

2.直接传一个数组到后台

 

 

前台JS代码

function saveRoleEdit()
    {    
        var roleNames = $(\'#roleNames\').textbox("getText");
        var roleDetail = {};
        roleDetail.roleFunctionCount = 0;
        roleDetail.roleFunctionList = [];
        if(roleNames.length < 0 || roleNames.length == 0)
        {
            $.messager.alert("提示","请输入角色名");
            return;
        }
        var funNodeList = $("#roleFuntionTree").tree(\'getChecked\',\'indeterminate\');
        var funLeafList = $(\'#roleFuntionTree\').tree(\'getChecked\');
        if(funNodeList.length <=0 && funLeafList.length <= 0)
        {
            $.messager.alert("提示","请选择权限节点");
            return;
        }    
        
        Array.prototype.push.apply(funNodeList, funLeafList);   // funNodeList,funLeafList两个数组都变成合并后的数组
        var roleFunArray = [];
        for(var i=0; i < funNodeList.length; i++)
        {
            if (!isEmptyTarget(funNodeList[i].id))
            {
                roleFunArray.push(funNodeList[i].id);
            }
        }

         alert("权限ID Array为 ：" + JSON.stringify(roleFunArray));
        $.ajax(
        {
              type : "POST",
              url : "permiss-manager/modifyRoleAuthority.action?_dc=" + Math.random(),
              data :
            {
                roleName:roleNames,
                roleDetailStr:JSON.stringify(roleFunArray),
            },
            success : function(result)
            {
            if(result == "success") 
            {
                $.messager.alert("提示","修改权限成功！","info");
                editRoleDialog();
                refreshRoleSelectTree();
                
            }
            else
            {
                $.messager.alert("提示","修改权限失败！","info");
            }
            }    
        });
    
    }

 

 

后台Action方法

@Action("modifyRoleAuthority")
    public void modifyRoleAuthority() throws IOException
    {
        HttpServletResponse  response = ServletActionContext.getResponse();
        response.setCharacterEncoding("utf-8");
        
        webLogService.writeWebLog(ServletActionContext.getRequest().getSession().getAttribute("userId").toString(), "权限给予", ServletActionContext.getRequest().getRemoteAddr());
        String roleName = ServletActionContext.getRequest().getParameter("roleName");
        String newFuncListStr = ServletActionContext.getRequest().getParameter("roleDetailStr");
        
        if(!StringUtils.isEmpty(roleName) && !StringUtils.isEmpty(newFuncListStr))
        {
            List<Integer> newFuncList = new ArrayList<Integer>();
            //这种方法可以把前台传过来的String类型的值  每个转化成int  因为我这里之前dao爆了   就是因为String不能转化为Int的原因   这里可以转一下
            JSONArray mJSONArray= JSONArray.fromObject(newFuncListStr);
            newFuncList = Arrays.asList((Integer[])JSONArray.toArray(mJSONArray, Integer.class));
            if(!newFuncList.isEmpty())
            {
                if(permissionService.setRole(roleName, newFuncList))
                {
                    response.getWriter().write("success");
                }
                else
                {
                    response.getWriter().write("fail");
                }
            }
        }
    }