生成freemarker静态页面的工具类

Posted 2020-08-25 爱编程的欧巴

package cn.bocai.pc.util;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Map;

import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

public class Generatorhtml {
private Configuration config = null;
/**
* 如果目录不存在，则自动创建
* @param path
* @return boolean 是否成功
*/
private boolean creatDirs(String path) {
File aFile = new File(path);
if (!aFile.exists()) {
return aFile.mkdirs();
} else {
return true;
}
}

/**
* 模板生成静态html的方法
* @param templateFileName(模板文件名)
* @param templateFilePath(指定模板目录)
* @param contextMap (用于处理模板的属性Object映射)
* @param htmlFilePath(指定生成静态html的目录)
* @param htmlFileName(生成的静态文件名)
*/
@SuppressWarnings("unchecked")
public void geneHtmlFile(String templateFileName, String templateFilePath, Map contextMap,
String htmlFilePath, String htmlFileName) {

try {
Template t = this.getFreeMarkerCFG(templateFilePath).getTemplate(templateFileName,"GBK");
t.setEncoding("UTF-8");
// 如果根路径存在,则递归创建子目录
this.creatDirs(htmlFilePath);
File afile = new File(htmlFilePath + "/" + htmlFileName);
Writer out = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(afile),"UTF-8"));
t.process(contextMap, out);
out.flush();
out.close();
} catch (TemplateException e) {
System.out.print(e.getMessage());
} catch (IOException e) {
System.out.print(e.getMessage());
} catch (Exception e) {
System.out.print(e.getMessage());
}
}

/**
* 模板生成静态html的方法
* @param templateFileName(模板文件名)
* @param templateFilePath(指定模板目录)
* @param contextMap (用于处理模板的属性Object映射)
* @param htmlFilePath(指定生成静态html的目录)
* @param htmlFileName(生成的静态文件名)
*/
@SuppressWarnings("unchecked")
public void geneHtmlFileUTF8(String templateFileName, String templateFilePath, Map contextMap,
String htmlFilePath, String htmlFileName) {

try {
Template t = this.getFreeMarkerCFG(templateFilePath).getTemplate(templateFileName,"UTF-8");
t.setEncoding("UTF-8");
// 如果根路径存在,则递归创建子目录
this.creatDirs(htmlFilePath);
File afile = new File(htmlFilePath + "/" + htmlFileName);
Writer out = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(afile),"UTF-8"));
t.process(contextMap, out);
out.flush();
out.close();
} catch (TemplateException e) {
System.out.print(e.getMessage());
} catch (IOException e) {
System.out.print(e.getMessage());
} catch (Exception e) {
System.out.print(e.getMessage());
}
}
/**
*
* 获取freemarker的配置，freemarker本身支持classpath,目录或从ServletContext获取.
*
* @param templateFilePath
* 获取模板路径
* @return Configuration 返回freemaker的配置属性
* @throws Exception
*/
private Configuration getFreeMarkerCFG(String templateFilePath)
throws Exception {
if (null == this.config) {

this.config = new Configuration();
this.config.setDefaultEncoding("UTF-8");
try {
this.config.setDirectoryForTemplateLoading(new File(
templateFilePath));
} catch (Exception ex) {
throw ex;
}
}
return this.config;
}

public void geneHtmlFileUTF8(String templateFileName, String templateFilePath, Map contextMap,String htmlFilePath) {
try {
Template t = this.getFreeMarkerCFG(templateFilePath).getTemplate(templateFileName,"UTF-8");
t.setEncoding("UTF-8");
// 如果根路径存在,则递归创建子目录
this.creatDirs(htmlFilePath);
File afile = new File(htmlFilePath);
Writer out = new BufferedWriter(new OutputStreamWriter(
new FileOutputStream(afile),"UTF-8"));
t.process(contextMap, out);
out.flush();
out.close();
} catch (TemplateException e) {
System.out.print(e.getMessage());
} catch (IOException e) {
System.out.print(e.getMessage());
} catch (Exception e) {
System.out.print(e.getMessage());
}

}
}