使用FreeMaker生成java代码-白红宇

使用FreeMaker生成java代码

阅读量：6868 次

发布时间：2019-06-26

本文共 2830 字，大约阅读时间需要 9 分钟。

1）首先下载FreeMaker的jar包（下载后导入工程）

下载地址：（我使用的版本是2.3.26）

http://www.apache.org/dyn/closer.cgi/incubator/freemarker/engine/2.3.26-incubating/binaries/apache-freemarker-2.3.26-incubating-bin.tar.gz

maven依赖


    	
     
      org.freemarker
     	
     
      freemarker
     	
     
      2.3.26-incubating

2）测试项目目录结构

3）Person.ftl

package ${packageName}; /** *  <#if author == "xzw"> @author xzw 
     */public class ${className} {    <#list attrs as a>     private ${a.type} ${a.field};    
            <#list attrs as a>    public void set${a.field?cap_first}(${a.type} ${a.field}){        this.${a.field} = ${a.field};    }        public ${a.type} get${a.field?cap_first}(){        return this.${a.field};    }        
    }

4) Attr.java

package com.JobData;public class Attr{	public String field;	public String type;		public Attr(String field,  String type){		this.field = field;		this.type = type;	}		public String getField(){		return this.field;	}		public String getType(){		return this.type;	}		public void setField(String field){		this.field = field;	}		public void setType(String type){		this.type = type;	}}

5）CodeGenerator.java

package com.main;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.OutputStream;import java.io.OutputStreamWriter;import java.io.StringWriter;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import com.JobData.Attr;import freemarker.template.Configuration;import freemarker.template.Template;import freemarker.template.TemplateException;public class CodeGenerator {		@SuppressWarnings("deprecation")	public static void main(String[] args){		List

简单好用，适合很多重复的代码生成，降低出错率。