解决highchats导出图片乱码问题
网上很多都是自己写一个servlet,然后url改成自己的。但是servlet只支持IE,在google浏览器上得不到参数值,所以改造servlet成为action。其中需要引入三个jar包。三个jar包在附件。
package com.creditease.ccsp.action;import java.io.StringReader;import javax.servlet.ServletOutputStream;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;import org.apache.struts2.convention.annotation.Action;import org.apache.struts2.convention.annotation.Namespace;import org.apache.struts2.convention.annotation.ParentPackage;import org.apache.struts2.convention.annotation.Result;@Namespace("/manage")@ParentPackage("manage")public class ImageExportAction extends ActionImpl{ /** * */ private static final long serialVersionUID = 7547110498655678209L; @Action(value = "exportChart", results = { @Result(name = "success", type = "json") }) public String execute() throws Exception { request.setCharacterEncoding("utf-8");//注意编码 String type = request.getParameter("type"); String svg = request.getParameter("svg"); 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 = new PDFTranscoder(); } else if (type.equals("image/svg+xml")) { ext = "svg"; } response.addHeader("Content-Disposition", "attachment; filename=chart."+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 == "svg"){ out.print(svg); } 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(); return NONE; }@Overridepublic Object getModel() {// TODO Auto-generated method stubreturn null;} }
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