如何将一个java变量传递给javascript(how to pass a java variable to javascript)
我想把一个java变量传递给javascript，我在jsp页面中没有body标签然后我不能这样传递：
<body onload="start(<%=otp1%>);">我需要运行这个JavaScript onload。 有没有办法将java变量传递给javascript？ 我怎样才能做到这一点？
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <% String otp1 = (String) session.getAttribute("chartResult"); %> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Flot Examples: Basic Usage</title> <link href="../theme/bower_components/flot/examples/examples.css" rel="stylesheet" type="text/css"> <%-- <link href="../theme/bower_components/flot/examples/examplesrtl.css" rel="stylesheet" type="text/css">--%> <%-- <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../theme/bower_components/flot/excanvas.min.js"></script><![endif]-->--%> <script language="javascript" type="text/javascript" src="../theme/bower_components/flot/jquery.js"></script> <script language="javascript" type="text/javascript" src="../theme/bower_components/flot/jquery.flot.js"></script><!-- jQuery --> <style type="text/css"> body { font: 11px/1.1em "proxima-nova", Helvetica, Arial, sans-serif; } h2 { margin-top: 0; } </style> <script type="text/javascript" > function start(otp1){ var d1 = []; for (var i = 0; i < 14; i += 0.5) { d1.push([i, Math.sin(i)]); } var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]]; // A null signifies separate line segments var d3 = [[0, 12], [7, 12], null, [7, 2.5], [12, 2.5]]; $.plot("#placeholder", [ d1, otp1, d3 ]); // Add the Flot version string to the footer $("#footer").prepend("Flot " + $.plot.version + " – "); } </script> <div id="header" > <h2>Basic Usage</h2> </div> <div id="content" > <div class="demo-container"> <div id="placeholder" class="demo-placeholder"></div> </div> <p>You don't have to do much to get an attractive plot. Create a placeholder, make sure it has dimensions (so Flot knows at what size to draw the plot), then call the plot function with your data.</p> <p>The axes are automatically scaled.</p> </div> <div id="footer"> Copyright © 2007 - 2014 IOLA and Ole Laursen </div>I want to pass a java variable to javascript in away I donot have body tag in my jsp page then I cann't pass it this way :
<body onload="start(<%=otp1%>);">and I need to run this javascript onload. is there anyother way to pass java variable to javascript? how can I do that?
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <% String otp1 = (String) session.getAttribute("chartResult"); %> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Flot Examples: Basic Usage</title> <link href="../theme/bower_components/flot/examples/examples.css" rel="stylesheet" type="text/css"> <%-- <link href="../theme/bower_components/flot/examples/examplesrtl.css" rel="stylesheet" type="text/css">--%> <%-- <!--[if lte IE 8]><script language="javascript" type="text/javascript" src="../theme/bower_components/flot/excanvas.min.js"></script><![endif]-->--%> <script language="javascript" type="text/javascript" src="../theme/bower_components/flot/jquery.js"></script> <script language="javascript" type="text/javascript" src="../theme/bower_components/flot/jquery.flot.js"></script><!-- jQuery --> <style type="text/css"> body { font: 11px/1.1em "proxima-nova", Helvetica, Arial, sans-serif; } h2 { margin-top: 0; } </style> <script type="text/javascript" > function start(otp1){ var d1 = []; for (var i = 0; i < 14; i += 0.5) { d1.push([i, Math.sin(i)]); } var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]]; // A null signifies separate line segments var d3 = [[0, 12], [7, 12], null, [7, 2.5], [12, 2.5]]; $.plot("#placeholder", [ d1, otp1, d3 ]); // Add the Flot version string to the footer $("#footer").prepend("Flot " + $.plot.version + " – "); } </script> <div id="header" > <h2>Basic Usage</h2> </div> <div id="content" > <div class="demo-container"> <div id="placeholder" class="demo-placeholder"></div> </div> <p>You don't have to do much to get an attractive plot. Create a placeholder, make sure it has dimensions (so Flot knows at what size to draw the plot), then call the plot function with your data.</p> <p>The axes are automatically scaled.</p> </div> <div id="footer"> Copyright © 2007 - 2014 IOLA and Ole Laursen </div>最满意答案
使用内联脚本例如：
<script type="text/javascript" > var d1 = []; for (var i = 0; i < 14; i += 0.5) { d1.push([i, Math.sin(i)]); } var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]]; // A null signifies separate line segments var d3 = [[0, 12], [7, 12], null, [7, 2.5], [12, 2.5]]; $.plot("#placeholder", [ d1, <%=otp1%>, d3 ]); // Add the Flot version string to the footer $("#footer").prepend("Flot " + $.plot.version + " – "); </script>use inline script for example:
<script type="text/javascript" > var d1 = []; for (var i = 0; i < 14; i += 0.5) { d1.push([i, Math.sin(i)]); } var d2 = [[0, 3], [4, 8], [8, 5], [9, 13]]; // A null signifies separate line segments var d3 = [[0, 12], [7, 12], null, [7, 2.5], [12, 2.5]]; $.plot("#placeholder", [ d1, <%=otp1%>, d3 ]); // Add the Flot version string to the footer $("#footer").prepend("Flot " + $.plot.version + " – "); </script>更多推荐
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