table中點(diǎn)擊表頭實(shí)現(xiàn)排序的功能示例介紹

dataSetName = "fundcatagoryseasontemplate";
sortCol = reportContext.getHttpServletRequest().getParameter("sortCol");//獲取需要排序的列名
sortDir = reportContext.getHttpServletRequest().getParameter("sortDir");//獲取排列順序
currentURL = reportContext.getHttpServletRequest().getRequestURL()+"?"+reportContext.getHttpServletRequest().getQueryString();
sortClause = "";
targetURL = "";

if(sortDir != null){
if(sortDir.indexOf("ASC") != -1){
sortDir = "DESC";
}else{
sortDir = "ASC";
}
}else{
sortDir = "ASC";
}

if(sortCol != null sortCol.length != 0){
sortClause = " order by " + sortCol + " " + sortDir;
}

reportContext.getReportRunnable().getDesignInstance().getDataSet(dataSetName).queryText += sortClause; //獲取并修改底層sql語(yǔ)句

if(currentURL.indexOf("__sorting=") != -1 ){
targetURL = currentURL.substring(0,currentURL.indexOf("__sorting")-1 );
}else{
targetURL = currentURL;
}

targetURL = targetURL + "__sorting=truesortDir="+sortDir+"sortCol=";//修改url