容易遇到的问题之word07问题

BlogHandler.Java

public class BlogHandler extends AppBaseAction{
private Configuration configuration = null;

public Map<String,Object> dataMap = new HashMap<String,Object>();//填充的数据
public final static String TITLE = "title";
public final static String CATEGORY = "category";
public final static String CLASSIFYNAME = "classifyName";
public final static String CONTENT = "content";
public final static String ALLTAGNAME = "allTagName";

public BlogHandler() {
    configuration = new Configuration();
    configuration.setDefaultEncoding("utf-8");
}

public void createDoc(Writer out) {
    //设置模本装置方法和路径,FreeMarker支持多种模板装载方法。可以重servlet，classpath，数据库装载，
    //模板
    configuration.setClassForTemplateLoading(this.getClass(), "/com/yuqiaotech/pms/util");
    Template t=null;
    try {
        //test.ftl为要装载的模板
        t = configuration.getTemplate("blog.ftl");
        t.process(dataMap, out);
    } catch (TemplateException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

//模板
private String generateTemp(String str) {
    configuration.setClassForTemplateLoading(this.getClass(), "/com/yuqiaotech/pms/util");
    Template t = null;
    String htmlStr = "";
    try {
        t = configuration.getTemplate(str);
        StringWriter stringWriter = new StringWriter();
        BufferedWriter writer = new BufferedWriter(stringWriter);
        t.setEncoding("UTF-8");
        t.process(dataMap, writer);
        htmlStr = stringWriter.toString();
        writer.flush();
        writer.close();
    } catch (TemplateException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return htmlStr;     
}

/*
 * <img/>标签src替换为加上域名的链接
 */
public String exchangeImg(String content){
    String regex = "<img[^>]+src\\s*=\\s*['\"]([^'\"]+)['\"][^>]*>";
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(content);
    String src = "";
    String scheme = getRequest().getScheme() + "://"
            + getRequest().getServerName() + ":" + getRequest().getServerPort();
    //避免重复的图片链接
    HashSet<String> set = new HashSet<String>();
    while (matcher.find()) {
        src = matcher.group(1);
        set.add(src);
    }
    for(String str : set) {
        if(str.contains(scheme)){
            continue;
        }
        content = content.replace(str, scheme+str);
    }
    return content;
}

/*
 * 去除fontfamily默认为宋体字
 * 
 */
public String setFamily(String content){
    String regex = "font-family.*?;";
    content = content.replaceAll(regex, "");
    return content;
}

/*
 * <img/>
 * <img/> ==>
 * <v:shape style=3D'width:352.5pt;height:318.75pt'>
        <v:imagedata src=3D"file8676.files/image002.jpg" o:title=3D"logo"/>
    </v:shape>
 */
public String exImageToD(String content) throws FileNotFoundException, IOException {
    String regex = "<img[^>]+src\\s*=\\s*['\"]([^'\"]+)['\"][^>]*>";
    content = content.replaceAll("(style=)","$13D");
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(content);
    String src = "";
    String[] sp;
    File file = null;
    while (matcher.find()){
        src = matcher.group(1);
        sp = src.split("/");
        file = new File(getRequest().getRealPath("/")+src.replace(getRequest().getContextPath(), ""));
        if(isExitsImage(file)) {
            content = content.replaceFirst(regex, appendShap(getImageSize(file),sp[sp.length-1]));
        }

    }
    return content;
}

//根据内容获取图片链接
public List<String> getImageSrc(String content) throws FileNotFoundException, IOException {
    String regex = "<img[^>]+src\\s*=\\s*['\"]([^'\"]+)['\"][^>]*>";
    Pattern pattern = Pattern.compile(regex);
    Matcher matcher = pattern.matcher(content);
    String src = "";
    List<String> srcs = new ArrayList<String>();
    while (matcher.find()){
        src = matcher.group(1);
        srcs.add(src);
    }
    return srcs;
}

//获得图片的base64码
public String getImageBase(String src) {
    File file = new File(getRequest().getRealPath("/")+src.replace(getRequest().getContextPath(), ""));
    if(!isExitsImage(file)) {
        return "";
    }
    InputStream in = null;
    byte[] data = null;  
    try {
        in = new FileInputStream(file);
    } catch (FileNotFoundException e1) {
        e1.printStackTrace();
    }
    try {  
        data = new byte[in.available()];  
        in.read(data);  
        in.close();  
    } catch (IOException e) {  
      e.printStackTrace();  
    } 
    BASE64Encoder encoder = new BASE64Encoder();
    return encoder.encode(data);
}

public boolean isExitsImage(File file) {
    return file.exists();
}

private String appendShap(BufferedImage image,String str){
    String shape = "<v:shape type=3D\"#_x0000_t75\" style=3D'width:" + image.getWidth() + ";height:" + image.getHeight() + "'>"
            + "<v:imagedata src=3D\"file8676.files/" + str + " \"o:title=3D" + str + "\"/>"
            + "</v:shape>";
    return shape;
}

private BufferedImage getImageSize(File image) throws FileNotFoundException, IOException {
    return ImageIO.read(new FileInputStream(image));
}

这里面要注意的一个问题是type=3D\”#_x0000_t75\ 这是一定要加上的不然在2003中能看到图片，到了2007中就看不到了
action

public void exportBlog() throws UnsupportedEncodingException {
String title = article.getTitle();
getResponse().addHeader(
“Content-Disposition”,
“attachment;filename=”
+ new String(title.getBytes(“GBK”), “iso-8859-1”)
+ “.doc”);
getResponse().setContentType(“application/x-download”);// 设置为下载application/x-download
getResponse().setCharacterEncoding(“utf-8”);
PrintWriter output = null;
try {
output = getResponse().getWriter();
BlogHandler handler = new BlogHandler();
handler.dataMap.put(BlogHandler.TITLE, article.getTitle());
handler.dataMap.put(BlogHandler.CATEGORY, article.getCategory());
handler.dataMap.put(BlogHandler.CLASSIFYNAME,
article.getClassifyName());
handler.dataMap.put(BlogHandler.CONTENT,
handler.exImageToD(article.getContent()));
String hql = “select tagName from TagMark where entityType=’Blog’ and relateEntityId = ”
+ articleId;
List alltagName = articleManager.find(hql);
if(alltagName.size() > 0){
handler.dataMap.put(BlogHandler.ALLTAGNAME, alltagName);
}

        Map<String, String> imageMap = null;
        List<Map<String, String>> list = new ArrayList<Map<String,String>>();
        String[] sp = null;
        for(String src : srcs){
            sp = src.split("/");
            imageMap = new HashMap<String, String>();
            imageMap.put("imageName", sp[sp.length-1]);
            imageMap.put("imageType", sp[sp.length-1].split("\\.")[1]);
            imageMap.put("imageBase", handler.getImageBase(src));
            list.add(imageMap);
        }
        handler.dataMap.put("imageList", list);
        handler.createDoc(output);
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        output.flush();
        output.close();
    }
}

应该代码很明确了，我再简单说一下思路，首先从数据库中获取带css样式的content，并且content包含img，然后利用freemark生成预定的模板，将数据填充进去，而mht是携带base64格式图片的，所以这里必须进行一个转码，然后就可以生成word了，思路应该挺简单的，就是需要对图片链接进行一个处理就行了。