在我们的项目中也用到了Freemarker生成静态文件。不过这里我要说的是编码的问题。我们的项目使用的都是UTF-8编码,我直接使用 飞云小侠 提供的方法生成的文件在UTF-8编码下察看是乱码,而GBK正常(后来发现因为我用的中文操作系统所以用GBK查看正常)。
当然我把Freemarker的配置都改成了UTF-8,我的模版文件也是UTF-8编码的。下面是原来的代码
public
void
setTemplatePath(Resource templatePath) {
this .templatePath = templatePath;
// 设置freemarker的参数
freemarkerCfg = new Configuration();
try {
freemarkerCfg.setDirectoryForTemplateLoading( this .templatePath.getFile());
freemarkerCfg.setObjectWrapper( new DefaultObjectWrapper());
freemarkerCfg.setDefaultEncoding( " UTF-8 " );
} catch (IOException ex) {
throw new SystemException( " No Directory found,please check you config. " );
}
}
this .templatePath = templatePath;
// 设置freemarker的参数
freemarkerCfg = new Configuration();
try {
freemarkerCfg.setDirectoryForTemplateLoading( this .templatePath.getFile());
freemarkerCfg.setObjectWrapper( new DefaultObjectWrapper());
freemarkerCfg.setDefaultEncoding( " UTF-8 " );
} catch (IOException ex) {
throw new SystemException( " No Directory found,please check you config. " );
}
}
/**
* 生成静态文件
* @param templateFileName 模版名称eg:(biz/order.ftl)
* @param propMap 用于处理模板的属性Object映射
* @param htmlFilePath 要生成的静态文件的路径,相对设置中的根路径,例如 "/biz/2006/5/"
* @param htmlFileName 要生成的文件名,例如 "123.htm"
* @return
*/
private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
try {
Template template = freemarkerCfg.getTemplate(templateFileName);
template.setEncoding( " UTF-8 " );
// 创建生成文件目录
creatDirs(buildPath.getFilename(),htmlFilePath);
File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(htmlFile)));
template.process(propMap,out);
out.flush();
return true ;
} catch (TemplateException ex){
log.error( " Build Error " + templateFileName,ex);
return false ;
} catch (IOException e) {
log.error( " Build Error " + templateFileName,e);
return false ;
}
}
下面是修改之后的代码
* 生成静态文件
* @param templateFileName 模版名称eg:(biz/order.ftl)
* @param propMap 用于处理模板的属性Object映射
* @param htmlFilePath 要生成的静态文件的路径,相对设置中的根路径,例如 "/biz/2006/5/"
* @param htmlFileName 要生成的文件名,例如 "123.htm"
* @return
*/
private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
try {
Template template = freemarkerCfg.getTemplate(templateFileName);
template.setEncoding( " UTF-8 " );
// 创建生成文件目录
creatDirs(buildPath.getFilename(),htmlFilePath);
File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(htmlFile)));
template.process(propMap,out);
out.flush();
return true ;
} catch (TemplateException ex){
log.error( " Build Error " + templateFileName,ex);
return false ;
} catch (IOException e) {
log.error( " Build Error " + templateFileName,e);
return false ;
}
}
/**
* 生成静态文件
* @param templateFileName 模版名称eg:(biz/order.ftl)
* @param propMap 用于处理模板的属性Object映射
* @param htmlFilePath 要生成的静态文件的路径,相对设置中的根路径,例如 "/biz/2006/5/"
* @param htmlFileName 要生成的文件名,例如 "123.htm"
* @return
*/
private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
try {
Template template = freemarkerCfg.getTemplate(templateFileName);
template.setEncoding( " UTF-8 " );
// 创建生成文件目录
creatDirs(buildPath.getFilename(),htmlFilePath);
File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(htmlFile), " UTF-8 " ));
template.process(propMap,out);
out.flush();
return true ;
} catch (TemplateException ex){
log.error( " Build Error " + templateFileName,ex);
return false ;
} catch (IOException e) {
log.error( " Build Error " + templateFileName,e);
return false ;
}
}
原因就在于OutputStreamWriter的不同构造方法
* 生成静态文件
* @param templateFileName 模版名称eg:(biz/order.ftl)
* @param propMap 用于处理模板的属性Object映射
* @param htmlFilePath 要生成的静态文件的路径,相对设置中的根路径,例如 "/biz/2006/5/"
* @param htmlFileName 要生成的文件名,例如 "123.htm"
* @return
*/
private boolean buildHtml(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName){
try {
Template template = freemarkerCfg.getTemplate(templateFileName);
template.setEncoding( " UTF-8 " );
// 创建生成文件目录
creatDirs(buildPath.getFilename(),htmlFilePath);
File htmlFile = new File(buildPath + htmlFilePath + htmlFileName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(htmlFile), " UTF-8 " ));
template.process(propMap,out);
out.flush();
return true ;
} catch (TemplateException ex){
log.error( " Build Error " + templateFileName,ex);
return false ;
} catch (IOException e) {
log.error( " Build Error " + templateFileName,e);
return false ;
}
}
OutputStreamWriter ( OutputStream out)
创建使用默认字符编码的 OutputStreamWriter。
OutputStreamWriter ( OutputStream out, String charsetName)
创建使用指定字符集的 OutputStreamWriter。
这个是中文JDK的文档说明,刚开始我使用默认的构造函数,所以使用了系统默认的编码,GBK,所以在生成静态文件的时候把UTF-8内容用GBK编码写入了,所以在UTF-8下浏览就有问题。
还有关于修改模版文件同样也要注意这个问题。
public
String loadTemplate(String templateName) {
StringBuffer sb = new StringBuffer();
try {
File file = new File(templatePath + " / " + templateName);
BufferedReader reader = new BufferedReader( new InputStreamReader( new FileInputStream(file), " UTF-8 " ));
String line = reader.readLine();
while (line != null ) {
sb.append(line);
sb.append( " \r\n " );
line = reader.readLine();
}
reader.close();
} catch (IOException e) {
throw new SystemException( " Loading template Error: " ,e);
}
return sb.toString();
}
StringBuffer sb = new StringBuffer();
try {
File file = new File(templatePath + " / " + templateName);
BufferedReader reader = new BufferedReader( new InputStreamReader( new FileInputStream(file), " UTF-8 " ));
String line = reader.readLine();
while (line != null ) {
sb.append(line);
sb.append( " \r\n " );
line = reader.readLine();
}
reader.close();
} catch (IOException e) {
throw new SystemException( " Loading template Error: " ,e);
}
return sb.toString();
}
public
void
saveTemplate(String templateName, String templateContent) {
try {
File file = new File(templatePath + " / " + templateName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(file), " UTF-8 " ));
out.write(templateContent);
out.flush();
// 扔出templatesave事件
TemplateSaveEvent evt = new TemplateSaveEvent();
evt.setTemplateName(templateName);
dispatchTemplateEvent(evt);
} catch (IOException e) {
throw new SystemException( " Write template Error " ,e);
}
}
try {
File file = new File(templatePath + " / " + templateName);
Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(file), " UTF-8 " ));
out.write(templateContent);
out.flush();
// 扔出templatesave事件
TemplateSaveEvent evt = new TemplateSaveEvent();
evt.setTemplateName(templateName);
dispatchTemplateEvent(evt);
} catch (IOException e) {
throw new SystemException( " Write template Error " ,e);
}
}