自动显示对话框,并且隔一段时间自动消失

最新推荐文章于 2021-02-02 16:36:35 发布

原创最新推荐文章于 2021-02-02 16:36:35 发布 · 1.2k 阅读

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#function #div #jsp

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本文介绍了一种使用JavaScript在JSP页面上创建自定义警告框的方法。通过动态生成HTML元素，可以设置警告框的位置、样式及关闭行为，并且能够自定义显示时间和消息内容。

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在jsp里引用如下代码:

var title;
function showMessage(str,time)
{
DIVAlert(str);
setTimeout("title.onclick()",time);
};

function DIVAlert(str){
var msgw,msgh,bordercolor;
msgw=200;//

msgh=100;//

titleheight=25 //

bordercolor="#335EA8";//

      titlecolor="#99CCFF";//

      var sWidth,sHeight;
      sWidth=document.body.offsetWidth;
      sHeight=screen.height;

    var bgObj=document.createElement("div");
      bgObj.setAttribute('id','bgDiv');
      bgObj.style.position="absolute";
      bgObj.style.top="0";
      bgObj.style.background="#777";
      bgObj.style.filter="progid:DXImageTransform.Microsoft.Alpha(style=3,opacity=25,finishOpacity=75";
      bgObj.style.opacity="0.6";
      bgObj.style.left="0";
      bgObj.style.width=sWidth + "px";
      bgObj.style.height=sHeight + "px";
      bgObj.style.zIndex = "10000";
      document.body.appendChild(bgObj);

      var msgObj=document.createElement("div")
      msgObj.setAttribute("id","msgDiv");
      msgObj.setAttribute("align","center");
      msgObj.style.background="white";
      msgObj.style.border="1px solid " + bordercolor;
         msgObj.style.position = "absolute";
               msgObj.style.left = "50%";
               msgObj.style.top = "50%";
               msgObj.style.font="12px/1.6em Verdana, Geneva, Arial, Helvetica, sans-serif";
               msgObj.style.marginLeft = "-100px" ;        //

               msgObj.style.marginTop = -75+document.documentElement.scrollTop+"px";
               msgObj.style.width = msgw + "px";
               msgObj.style.height =msgh + "px";
               msgObj.style.textAlign = "center";
               msgObj.style.lineHeight ="25px";
               msgObj.style.zIndex = "10001";

      // var title=document.createElement("h4");
        title=document.createElement("h4");
        title.setAttribute("id","msgTitle");
        title.setAttribute("align","right");
        title.style.margin="0";
        title.style.padding="3px";
        title.style.background=bordercolor;
        title.style.filter="progid:DXImageTransform.Microsoft.Alpha(startX=20, startY=20, finishX=100, finishY=100,style=1,opacity=75,finishOpacity=100);";
        title.style.opacity="0.75";
        title.style.border="1px solid " + bordercolor;
        title.style.height="18px";
        title.style.font="12px Verdana, Geneva, Arial, Helvetica, sans-serif";
        title.style.color="white";
        title.style.cursor="pointer";
        title.innerHTML="[x]";
        title.onclick=function(){
             document.body.removeChild(bgObj);
                   document.getElementById("msgDiv").removeChild(title);
                   document.body.removeChild(msgObj);
                   }

        document.body.appendChild(msgObj);
        document.getElementById("msgDiv").appendChild(title);
        var txt=document.createElement("p");
        txt.style.margin="1em 0"
        txt.setAttribute("id","msgTxt");
        txt.innerHTML=str;
              document.getElementById("msgDiv").appendChild(txt);
               };