简单freeMaker实例

Posted 2021-01-07 ericguoxiaofeng

要用的包：

1）新建doc模板：

2）另存为：test.xml

3）nodePad++ 打开 test.xml 并修改其中数据：（解析的时候分开了）

变成

4）保存并改后缀名成ftl：test.ftl

5）上代码

DocumentHandler

package freemaker;

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

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

public class DocumentHandler {
     
    private Configuration configuration = null;
    
    public DocumentHandler(){
        configuration = new Configuration();
        configuration.setDefaultEncoding("UTF-8");
    }
    
    /**
     * 
     * @param dataMap  数据
     * @param outFilePath  要输出的文件路径（以及文件名）
     * @param fileName  要获取的文件名
     * @return
     * @throws Exception
     */
    public byte[] createDocArea (Map<String, Object> dataMap ,String outFilePath,String fileName) throws Exception{
        this.configuration.setDirectoryForTemplateLoading(new File("d:\\user\\80002795\\桌面\\测试freemaker"));// 取得模板路径
        Template template = null;
        File outFile = null;
        byte[] bFile = null;
        try {
            template = this.configuration.getTemplate(fileName,"UTF-8");  // 取得路径下面的文件名（原始模板已经放在这个对象里面了）
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        
        outFile = new File(outFilePath);
        Writer writer = null;
        FileOutputStream fos = null;
        
        try {
            fos = new FileOutputStream(outFile);
            OutputStreamWriter osw = new OutputStreamWriter(fos,"UTF-8"); // 文件输出流转换成字节输出流
            
            writer = new BufferedWriter(osw);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        
        try {
            template.process(dataMap, writer);  // 写流
            if(outFile!=null){
                FileInputStream fis = new FileInputStream(outFile);
                 bFile = new byte[(int) outFile.length()];
                 fis.read(bFile);
                 fis.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }finally{
            writer.close();
            fos.close();
        }
        return bFile;
    }
}

 

 测试方法：

package freemaker;

import java.util.HashMap;
import java.util.Map;

public class TestMain {
    public static void main(String[] args) throws Exception {
        DocumentHandler documentHandler = new DocumentHandler();
        Map<String, Object> map = new HashMap<String, Object>();
        map.put("name", "guoxiaofeng");
        map.put("gender", "boy");
        String path = "D:\\test\\hah.doc";
        String name = "test.ftl";
        documentHandler.createDocArea(map, path, name);
    }    
}

 6）打开之后，成功：