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我在 html 页面中成功渲染了 d3js 区域图这是在 chrome 或 mozilla 中成功渲染的代码。文件的名称是 temp.html。这是代码

<!DOCTYPE html>
<html lang="en" class="no-js">

<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> 
<title>js graphs and charts libraries</title>
<script 
src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="http://d3js.org/d3.v3.js"></script>

<body>
    <div id="dbar">

    </div>

<script type="text/javascript"> 
    var margin = {top:10, right: 20, bottom: 30,left: 40},
        width = 960 - margin.left - margin.right,
        height = 400 - margin.top - margin.bottom;
        var svg = d3.select ("#dbar").append("svg").attr("width",
width+margin.left+margin.right).attr("height",height+margin.top+margin.bottom)
.append("g").
attr("transform","translate("+margin.left+","+margin.top+")");
 var parseDate = d3.time.format("%m-%Y").parse;

    var x = d3.time.scale().range([0, width]);
    var y = d3.scale.linear().range([height, 0]);

    var xAxis = d3.svg.axis().scale(x).orient("bottom");

    var yAxis = d3.svg.axis().scale(y).orient("left");

    var area = d3.svg.area().x(function(d) { return x(d.date); })
                .y0(height)
                .y1(function(d) { return y(d.count); });
d3.json("data/json.json", function(error, data) {
      data.StoreVisitGraphCount.list.forEach(function(d) {

        d.date = parseDate(d.date);

        d.count = +d.count;
      });
      //console.log(data.StoreVisitGraphCount.list);
    x.domain(d3.extent(data.StoreVisitGraphCount.list, function(d) {
return d.date; }));
    y.domain([0, d3.max(data.StoreVisitGraphCount.list, function(d) { 
return d.count; })]);
console.log(data.StoreVisitGraphCount.list);
  svg.append("path")
      .datum(data.StoreVisitGraphCount.list)
      .attr("class", "area")
      .attr("d", area);

  svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis);

  svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Price ($)");
    });
</script>

</body>
</html>

但是当我复制粘贴这段代码说“temp.jsp”页面时，它没有呈现并且图表没有出现。我在tomcat服务器上运行这个页面。

需要建议

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1 回答 1

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这不是因为您将其保存为 jsp 或 html 页面。您需要将 charset="UTF-8" 添加到脚本声明中，因为 d3.js 使用 UTF 字符。

例如。

<script src="http://d3js.org/d3.v3.js" charset="UTF-8"></script>
于 2013-01-24T13:31:50.517 回答