Java导出Highcharts生成的图表为图片源码

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
	xmlns="http://java.sun.com/xml/ns/javaee" 
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
 http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">   <servlet>
    <description>This is the description of my J2EE component</description>
    <display-name>This is the display name of my J2EE component</display-name>
    <servlet-name>SaveAsImage</servlet-name>
    <servlet-class>com.foxconn.highcharts.demo.SaveAsImage</servlet-class>
  </servlet>

  <servlet-mapping>
    <servlet-name>SaveAsImage</servlet-name>
    <url-pattern>/SaveAsImage</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>basic_line.jsp</welcome-file>
  </welcome-file-list>
</web-app>

package com.foxconn.highcharts.demo;

import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.StringReader;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.batik.transcoder.Transcoder;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.batik.transcoder.image.JPEGTranscoder;
import org.apache.batik.transcoder.image.PNGTranscoder;
//import org.apache.fop.svg.PDFTranscoder;

public class SaveAsImage extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor of the object.
	 */
	public SaveAsImage() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
	}

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doPost(request, response);
	}
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		/*导成pdf做了很久，但还是没能做出来，因为一直报
	    * java.lang.NoSuchMethodError: org.apache.avalon.framework.configuration.DefaultConfiguration.<init>(Ljava/lang/String;)V的错误，
	    * 如果你知道如何解决这个错误，请告诉我一下，在此先谢过了。
	    * */
		request.setCharacterEncoding("utf-8");//设置编码，解决乱码问题
		String type = request.getParameter("type");
		String svg = request.getParameter("svg");
		String filename = request.getParameter("filename");
		filename = filename==null?"chart":filename;
		ServletOutputStream out = response.getOutputStream();
		if (null != type && null != svg) {
		    svg = svg.replaceAll(":rect", "rect");
		    String ext = "";
		    Transcoder t = null;
		    if (type.equals("image/png")) {
				ext = "png";
				t = new PNGTranscoder();
		    } else if (type.equals("image/jpeg")) {
				ext = "jpg";
				t = new JPEGTranscoder();
		    }/* else if (type.equals("application/pdf")) {
                ext = "pdf";
                t =(Transcoder) new PDFTranscoder();
	        }*/ else if(type.equals("image/svg+xml")) 
	            ext = "svg";   
		    response.addHeader("Content-Disposition", "attachment; filename="+ filename + "."+ext);
		    response.addHeader("Content-Type", type);
		    
		    if (null != t) {
				TranscoderInput input = new TranscoderInput(new StringReader(svg));
				TranscoderOutput output = new TranscoderOutput(out);
				
				try {
				    t.transcode(input, output);
				} catch (TranscoderException e) {
				    out.print("Problem transcoding stream. See the web logs for more details.");
				    e.printStackTrace();
				}
		    } else if (ext.equals("svg")) {
		    //	out.print(svg);
		    	OutputStreamWriter writer = new OutputStreamWriter(out, "UTF-8");
		    	writer.append(svg);
		    	writer.close();
		    } else 
		    	out.print("Invalid type: " + type);
		} else {
		    response.addHeader("Content-Type", "text/html");
		    out.println("Usage:\n\tParameter [svg]: The DOM Element to be converted." +
		    		"\n\tParameter [type]: The destination MIME type for the elment to be transcoded.");
		}
		out.flush();
		out.close();
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Basic Line</title>
<script src="js/jquery.min.js" type="text/javascript"></script>
    <script src="js/excanvas.compiled.js" type="text/javascript"></script>
    <script src="js/highcharts.js" type="text/javascript"></script>
    
    <script src="js/highcharts.src.js" type="text/javascript"></script>
    <script type="text/javascript" src="js/exporting.js"></script>
    <script type="text/javascript">
        var chart;
        $(document).ready(function(){
            chart = new Highcharts.Chart({
                chart: {
                    renderTo: 'container',
                    defaultSeriesType: 'line',
                    marginRight: 130,
                    marginBottom: 25
            },
            title: {
                text: 'Monthly Average Temperature',
                x: -20    //center
            },
            subtitle: {
                text: '测试中文乱码',
                x: -20
            },
            xAxis: {
                categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
                                'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
            },
            yAxis: {
                title: {
                    text: 'Temperature (°C)'
                },
                plotLines: [{
                    value: 0,
                    width: 1,
                    color: '#808080'
                }]
            },
            exporting:{
                filename:'chart',
                url:'http://localhost:8080/HighChartsDemo/SaveAsImage'//这里是一个重点哦,也可以修改exporting.js中对应的url
            },
            tooltip: {
                formatter: function(){
                    return '<b>' + this.series.name + '</b><br/>' +
                    this.x + ': ' + this.y + '°C';
                }
            },
            legend: {
                layout: 'vertical',
                align: 'right',
                verticalAlign: 'middle',
                x: 10,
                y: 100,
                borderWidth: 0
            },
            series: [{
                name: 'Tokyo',
                data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
            },{
                name: 'New York',
                data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
            },{
                name: 'Berlin',
                data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
            },{
                name: 'London',
                data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
            }]
            });
        });
    </script>
</head>
<body>
    <div id="container" style="width: 100%; height: 400px"></div>
</body>
</html>