package com.saoft.fastdemo.gen;
 
import freemarker.cache.ClassTemplateLoader;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
 
import java.io.IOException;
import java.io.StringWriter;
import java.nio.charset.Charset;
import java.util.HashMap;
import java.util.Map;
 
public class FreemarkerDemo {
 
    public static void main(String[] args) throws IOException, TemplateException {
        /*初始化freemarker模板*/
        Configuration configuration = new Configuration(Configuration.DEFAULT_INCOMPATIBLE_IMPROVEMENTS);
        configuration.setDefaultEncoding(Charset.forName("UTF-8").name());
 
        //這裡的ClassTemplateLoader 的basePackagePath  如果是 / 開頭就是絕對路徑。如果不是/ 開頭就是相對於
        //com.saoft.fastdemo.gen.FreemarkerDemo.java 這個類的相對路徑，會以com.saoft.fastdemo.gen這個目錄開始找
        //FileTemplateLoader
        configuration.setTemplateLoader(new ClassTemplateLoader(FreemarkerDemo.class,"/templates/"));
 
        //獲取模板
        Template template = configuration.getTemplate("ssm/demo.ftl");
 
        //需要注入的資料
        Map<String, Object> dataMap = new HashMap<>();
        dataMap.put("testKey", "This is key");
 
        //輸出位置 這裡用字串輸出，如果要輸出檔案自行替換
        StringWriter writer = new StringWriter();
        template.process(dataMap, writer);
 
        System.out.println(writer.getBuffer());
    }
}