首先建立一个模版文件。
当然freemark建议的是ftl结尾。其实这个是可以自己设定的。
这里需要根据需求添加的元素就用${}包含起来.然后在java文件中去添加就可以了。
如下：
/**
* @title ${model_name}.java
* @description
* @create ${date?string("yyyy-MM-dd HH:mm:ss")} By ${author}
* @package ${package_name}
* @copyright Copyright (c) 2011-2012 ${link} . All right reserved
* @version $Id$
* XYRJ-Java-Project
*/
package com.freemark.model;
import java.util.List;
import com.freemark.pojo.${model_pojo};
/**
*
* @description
*
* @classname ${model_name_cn}
* @author ${author}
* @date ${date?string("yyyy-MM-dd HH:mm:ss")}
* @version 1.0
*/
public class ${model_name}
{
/**
*
* 根据${model_name_cn}查找${model_name_cn}信息
*
* @description
*
* @title find${model_pojo}ById
* @author yangzhi<helloyangzhi@foxmail.com>
* @param Long ${instant}Id
* @return ${model_name}
* @throws
*/
public ${model_name} find${model_pojo}ById(Long ${instant}Id)
{
return null;
}
/**
* 批量物理删除${model_name_cn}(不可恢复)
* @param ${instant}Ids ${model_name_cn}编号
* @throws DAOException
*/
public void delete${model_name_list}(Long[] ${instant}Ids)
{
}
/**
* 物理删除${model_name_cn}(不可恢复)
* @param ${instant}Id ${model_name_cn}编号
* @throws DAOException
*/
public void delete${model_pojo}(Long ${instant}Id)
{
}
/**
* 保存${model_name_cn}
* @param ${instant}
* @throws DAOException
*/
public void save${model_pojo}(${model_pojo} ${instant})
{
}
/**
* 更新${model_name_cn}
* @param ${instant}
* @throws DAOException
*/
public void update${model_pojo}(${model_pojo} ${instant})
{
}
/**
* 利用hql语句查询${model_name_cn}信息
* @param hsql
* @throws DAOException
*/
public List<${model_pojo}> find${model_name_list}(String hsql)
{
return null;
}
/**
* 利用hql语句查询${model_name_cn}信息
* @param hsql
* @throws DAOException
*/
public List<${model_pojo}> find${model_name_list}(String hsql,Object[] params)
{
return null;
}
}
这里需要引扩freemark.jar.然后在去写一个工具类，如下:
/**
* @title Client.java
* @description
* @create 2013-4-7 ����03:22:56 By yangzhi
* @package com.freemark
* @copyright Copyright (c) 2011-2012 http://xyrj.hhtc.edu.cn.com. All right reserved
* @version $Id$
* XYRJ-Java-Project
*/
package com.freemark;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.utility.Constants;
/**
*
* @description
*
* @classname Client
* @author yangzhi<helloyangzhi@foxmail.com>
* @date 2013-4-7 下午04:37:38
* @version 1.0
*/
public class Client {
private Configuration cfg;
public void init() throws Exception{
cfg = new Configuration();
//模版文件所在的目录
cfg.setDirectoryForTemplateLoading(new File("template//"));
}
/**
* 建立模版
*
* @description
*
* @title buildTemplate
* @author yangzhi<helloyangzhi@foxmail.com>
* @param @throws Exception
* @return void
* @throws
*/
public void buildTemplate() throws Exception {
//设置root属性值
Map<String,Object> root = this.setRootVal();
//创建文件
this.createFile(root);
}
/**
* 设置root的值
*
* @description
*
* @title setRootVal
* @author yangzhi<helloyangzhi@foxmail.com>
* @param @return
* @return Map<String,Object>
* @throws
*/
@SuppressWarnings("serial")
public Map<String,Object> setRootVal(){
Map<String,Object> root = new HashMap<String,Object>(){
{
put("module","User");
put("model_name","UserModel");
put("model_pojo","UserPojo");
put("package_name","com.freemark.model");
put("model_name_list","Users");
put("instant","user");
put("model_name_cn","用户");
put("author","yangzhi");
put("link","www.helloyangzhi.com");
put("date",new Date());
}
};
return root;
}
/**
* 生成代码文件
*
* @description
*
* @title createFile
* @author yangzhi<helloyangzhi@foxmail.com>
* @param @param root
* @return void
* @throws
*/
public void createFile(Map root)
{
try {
//工程路径
//如果是web请求
//request.getRequestURI()
//这里就用了一个绝对路径
String projectPath = "D://java//workspace//freemarkdemo//";
//文件名
String fileName = root.get("model_name")+ ".java";
//保存路径
String savePath = "src//com//freemark//model//";
//模版文件,后缀随意
Template template = cfg.getTemplate("HelloAction.temp");
String realFileName = projectPath + savePath + fileName;
String realSavePath = projectPath + "/" + savePath;
File newsDir = new File(realSavePath);
if (!newsDir.exists()) {
newsDir.mkdirs();
}
Writer out = new OutputStreamWriter(
new FileOutputStream(realFileName),
"UTF-8");
template.process(root, out);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
*
*
* @description
*
* @title main
* @author yangzhi<helloyangzhi@foxmail.com>
* @param @param args
* @param @throws Exception
* @return void
* @throws
*/
public static void main(String[] args) throws Exception {
Client client = new Client();
client.init();
client.buildTemplate();
}
}
运行之后就可以看到：
/**
* @title UserModel.java
* @description
* @create 2013-04-07 21:31:12 By yangzhi
* @package com.freemark.model
* @copyright Copyright (c) 2011-2012 www.helloyangzhi.com . All right reserved
* @version $Id$
* XYRJ-Java-Project
*/
package com.freemark.model;
import java.util.List;
import com.freemark.pojo.UserPojo;
/**
*
* @description
*
* @classname 用户
* @author yangzhi
* @date 2013-04-07 21:31:12
* @version 1.0
*/
public class UserModel
{
/**
*
* 根据用户查找用户信息
*
* @description
*
* @title findUserPojoById
* @author yangzhi<helloyangzhi@foxmail.com>
* @param Long userId
* @return UserModel
* @throws
*/
public UserModel findUserPojoById(Long userId)
{
return null;
}
/**
* 批量物理删除用户(不可恢复)
* @param userIds 用户编号
* @throws DAOException
*/
public void deleteUsers(Long[] userIds)
{
}
/**
* 物理删除用户(不可恢复)
* @param userId 用户编号
* @throws DAOException
*/
public void deleteUserPojo(Long userId)
{
}
/**
* 保存用户
* @param user
* @throws DAOException
*/
public void saveUserPojo(UserPojo user)
{
}
/**
* 更新用户
* @param user
* @throws DAOException
*/
public void updateUserPojo(UserPojo user)
{
}
/**
* 利用hql语句查询用户信息
* @param hsql
* @throws DAOException
*/
public List<UserPojo> findUsers(String hsql)
{
return null;
}
/**
* 利用hql语句查询用户信息
* @param hsql
* @throws DAOException
*/
public List<UserPojo> findUsers(String hsql,Object[] params)
{
return null;
}
}