Java导出Highcharts生成的图表为图片源码

本文转载自：http://blog.csdn.net/dengsilinming/article/details/7352054

需要的jar包:

需要的js文件:(可以通过http://www.highcharts.com/download下载highcharts对应的js文件)

下面是一些主要部分

web.xml

<?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>

servlet部分

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。现在已经可以正确地将图片导成pdf了，程序是没有问题的 
        * */  
        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();//我将这儿的注释去掉了，因为导成pdf的问题已经解决  
            } 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:
	Parameter [svg]: The DOM Element to be converted." +  
                    "
	Parameter [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  
    }  
  
}

jsp

<%@ 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 (Â°C)'  
                },  
                plotLines: [{  
                    value: 0,  
                     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 + 'Â°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=" 100%; height: 400px"></div>  
</body>  
</html>

项目源码可以通过点此下载

注意：请下载源码的同学，将源码中的

/* else if (type.equals("application/pdf")) { 
                ext = "pdf"; 
                t =(Transcoder) new PDFTranscoder(); 
            }*/

上面的注释去掉，程序是可以成功导出pdf的。