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@@ -1,86 +1,67 @@
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-var DEFAULT_URL = "";// 重新定义pdf.js的默认pdf路径
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-var PDFData = "";
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-loadPdfData();
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-/**
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- * 从服务器获取报表pdf流
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- */
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-function loadPdfData() {
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- var url = getUrl();
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- $.ajax({
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- type : "post",
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- async : false,
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- mimeType : 'text/plain; charset=x-user-defined',
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- url : url,
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- success : function(data) {
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- // 服务器未成功填充报表
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- if (data == null || data.toString().length < 1) {
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- return;
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- }
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- var result = JSON.parse(data);
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- // 服务器端pdf流经过base64编码，需要进行解码
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- PDFData = base64_decode(result.data);
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- }
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- });
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- var rawLength = PDFData.length;
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- // 转换成pdf.js能直接解析的Uint8Array类型,见pdf.js-4068
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- var array = new Uint8Array(new ArrayBuffer(rawLength));
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- for (i = 0; i < rawLength; i++) {
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- array[i] = PDFData.charCodeAt(i) & 0xff;
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- }
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- DEFAULT_URL = array;
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-}
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+var PDFData, DEFAULT_URL;
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+
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+var pageIndex = 1, pageSize = 1;// 当前页码，页码总数
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+
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+// 获取链接参数
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+var getParameter = function(key) {
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+ var reg = new RegExp("(^|&)" + key + "=([^&]*)(&|$)");
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+ var r = window.location.search.substr(1).match(reg);
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+ if (r != null)
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+ return unescape(r[2]);
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+ return null;
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+};
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-/**
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- * 拼接服务器端获取pdf流的url
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- *
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- * @returns {String}
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- */
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-function getUrl() {
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+// 获取url
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+var getUrl = function(page) {
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var userName = getParameter("userName");
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var reportName = getParameter("reportName");
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var whereCondition = getParameter("whereCondition");
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var otherParameters = getParameter("otherParameters");
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- var pageIndex = getParameter("pageIndex");
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+ pageIndex = page || getParameter("pageIndex") || 1;
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- var url = "print/loadPdfData?";
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- if (userName != null && userName != "") {
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- url += "userName=" + userName;
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+ var previewUrl = "print/loadPdfData?";
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+ if (userName) {
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+ previewUrl += "userName=" + userName;
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}
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- if (reportName != null && reportName != "") {
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- url += "&reportName=" + reportName;
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+ if (reportName) {
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+ previewUrl += "&reportName=" + reportName;
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}
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- if (whereCondition != null && whereCondition != "") {
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- url += "&whereCondition=" + whereCondition;
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+ if (whereCondition) {
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+ previewUrl += "&whereCondition=" + whereCondition;
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}
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- if (otherParameters != null && otherParameters != "") {
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- url += "&otherParameters=" + otherParameters;
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+ if (otherParameters) {
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+ previewUrl += "&otherParameters=" + otherParameters;
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}
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- if (pageIndex != null && pageIndex != "") {
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- url += "&pageIndex=" + pageIndex;
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+ if (pageIndex) {
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+ previewUrl += "&pageIndex=" + pageIndex;
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}
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- return url;
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-}
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-/**
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- * 从地址中获取参数
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- *
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- * @param key
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- * 参数名
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- * @returns 参数值
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- */
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-function getParameter(key) {
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- var reg = new RegExp("(^|&)" + key + "=([^&]*)(&|$)");
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- var r = window.location.search.substr(1).match(reg);
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- if (r != null)
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- return unescape(r[2]);
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- return null;
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+ return previewUrl;
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}
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-/**
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- * base64解码
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- *
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- * @param {Object}
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- * str
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- */
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+// 获取数据
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+function loadData(page, callback) {
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+ $.ajax({
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+ type: "get",
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+ async: false,
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+ url: page ? getUrl(page) : getUrl(),
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+ success: function(data) {
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+ pageSize = data.pageSize;
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+ PDFData = base64_decode(data.data);
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+ var rawLength = PDFData.length;
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+ //转换成pdf.js能直接解析的Uint8Array类型,见pdf.js-4068
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+ var array = new Uint8Array(new ArrayBuffer(rawLength));
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+ for(var i = 0; i < rawLength; i++) {
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+ array[i] = PDFData.charCodeAt(i) & 0xff;
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+ }
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+ DEFAULT_URL = array;
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+ callback && callback.call();
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+ }
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+ });
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+};
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+
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+loadData();
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+
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+// base64 解码
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function base64_decode(str) {
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var c1, c2, c3, c4;
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var base64DecodeChars = new Array(-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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@@ -136,4 +117,4 @@ function base64_decode(str) {
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string += String.fromCharCode(((c3 & 0x03) << 6) | c4)
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}
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return string;
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-}
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+}
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suntg