Java    html中bodyonload()方法
    后台:request.setAttribute("kotsukikanId", kotsukikanId);
        request.setAttribute("isLinkFlg", isLinkFlg); 
  前台<body onload="showMsgOnSuccess('${isLinkFlg}','${kotsukikanId}')"> 
  JS:
$(function() {
function showMsgOnSuccess(isLinkFlg,kotsukikanId) {
................  
  }
}