java 自动生成代码 entity,dao,service

/** * */ package com.b510.base.bean.install; import java.io.File; import java.io.FileWriter; import java.text.SimpleDateFormat; import java.util.Date; /** * @author hongten(hongtenzone@foxmail.com) * @date 2013-2-24 */ @SuppressWarnings("unchecked") public class BeanUtils { //公共部分 private static final String RT_1 = "\r\n"; private static final String RT_2 = RT_1+RT_1; private static final String BLANK_1 =" "; private static final String BLANK_4 =" "; private static final String BLANK_8 =BLANK_4 + BLANK_4; //注释部分 private static final String ANNOTATION_AUTHOR_PARAMTER = "@author "; private static final String ANNOTATION_AUTHOR_NAME = "hongten(hongtenzone@foxmail.com)"; private static final String ANNOTATION_AUTHOR = ANNOTATION_AUTHOR_PARAMTER + ANNOTATION_AUTHOR_NAME; private static final String ANNOTATION_DATE = "@date "; private static final String ANNOTATION = "/**"+RT_1+BLANK_1+"*"+BLANK_1+ANNOTATION_AUTHOR +RT_1+BLANK_1+"*"+BLANK_1+ANNOTATION_DATE +getDate()+RT_1+BLANK_1+"*/"+RT_1; //文件 地址 //private static final String BEAN_PATH = "com/b510/base/bean"; private static final String DAO_PATH = "com/b510/base/dao"; private static final String DAO_IMPL_PATH = "com/b510/base/dao/impl"; private static final String SERVICE_PATH = "com/b510/base/service"; private static final String SERVICE_IMPL_PATH = "com/b510/base/service/impl"; //包名 private static final String BEAN_URL = "com.b510.base.bean"; private static final String DAO_URL = "com.b510.base.dao"; private static final String DAO_IMPL_URL = "com.b510.base.dao.impl"; private static final String SERVICE_URL = "com.b510.base.service"; private static final String SERVICE_IMPL_URL = "com.b510.base.service.impl"; //基本类名称 private static final String BASE_DAO_NAME = DAO_URL + ".BaseDao"; private static final String ABSTRACT_BASE_DAO_IMPL_NAME = DAO_IMPL_URL + ".AbstractBaseDaoImpl"; private static final String BASE_SERVICE_NAME = SERVICE_URL + ".BaseService"; private static final String ABSTRACT_BASE_SERVICE_IMPL_NAME = SERVICE_IMPL_URL + ".AbstractBaseServiceImpl"; /** * 创建bean的Dao<br> * * @param c * @throws Exception */ public void createBeanDao(Class c) throws Exception { String cName = c.getName(); String fileName = System.getProperty("user.dir") + "/src/" + DAO_PATH + "/" + getLastChar(cName) + "Dao.java"; File f = new File(fileName); FileWriter fw = new FileWriter(f); fw.write("package "+DAO_URL+";"+RT_2+ANNOTATION+"public interface " + getLastChar(cName) + "Dao extends "+BASE_DAO_NAME+" <" + cName + "> {"+RT_2+"}"); fw.flush(); fw.close(); showInfo(fileName); } /** * 创建bean的Dao的实现类 * @param c * @throws Exception */ public void createBeanDaoImpl(Class c) throws Exception{ String cName = c.getName(); String fileName = System.getProperty("user.dir") + "/src/" + DAO_IMPL_PATH + "/" + getLastChar(cName) + "DaoImpl.java"; File f = new File(fileName); FileWriter fw = new FileWriter(f); fw.write("package "+DAO_IMPL_URL+";"+RT_2+ANNOTATION+"public class " + getLastChar(cName) + "DaoImpl extends "+ABSTRACT_BASE_DAO_IMPL_NAME+"<" + cName + "> implements "+DAO_URL+"."+getLastChar(cName)+"Dao{"+RT_2+"}"); fw.flush(); fw.close(); showInfo(fileName); } /** * 创建bean的service * @param c * @throws Exception */ public void createBeanService(Class c) throws Exception{ String cName = c.getName(); String fileName = System.getProperty("user.dir") + "/src/" + SERVICE_PATH + "/" + getLastChar(cName) + "Service.java"; File f = new File(fileName); FileWriter fw = new FileWriter(f); fw.write("package "+SERVICE_URL+";"+RT_2+ANNOTATION+"public interface " + getLastChar(cName) + "Service extends "+BASE_SERVICE_NAME+"<"+ cName +">{"+RT_2+"}"); fw.flush(); fw.close(); showInfo(fileName); } /** * 创建bean的service的实现类 * @param c * @throws Exception */ public void createBeanServiceImpl(Class c) throws Exception{ String cName = c.getName(); String fileName = System.getProperty("user.dir") + "/src/" + SERVICE_IMPL_PATH + "/" +getLastChar(cName)+"ServiceImpl.java"; File f = new File(fileName); FileWriter fw = new FileWriter(f); fw.write("package "+SERVICE_IMPL_URL+";"+RT_2+ANNOTATION+"public class " + getLastChar(cName) + "ServiceImpl extends "+ABSTRACT_BASE_SERVICE_IMPL_NAME+"<"+ cName + "> implements "+SERVICE_URL+"."+getLastChar(cName)+"Service{"+RT_2+BLANK_4 +"private "+DAO_URL+"."+getLastChar(cName)+"Dao "+getLowercaseChar(getLastChar(cName)) +"Dao;"+RT_2+BLANK_4+"public void set"+getLastChar(cName)+"Dao("+DAO_URL+"."+getLastChar(cName)+"Dao " +getLowercaseChar(getLastChar(cName))+"Dao){"+RT_1+BLANK_8+"this."+getLowercaseChar(getLastChar(cName))+"Dao = " +getLowercaseChar(getLastChar(cName))+"Dao;"+RT_1+BLANK_4+"}"+RT_2+BLANK_4+"@Override"+RT_1+BLANK_4 +"public "+DAO_URL+"."+"BaseDao<"+BEAN_URL+"."+getLastChar(cName)+"> getBaseDao(){"+RT_1+BLANK_8 +"return "+getLowercaseChar(getLastChar(cName))+"Dao;"+RT_1+BLANK_4+"}"+RT_2+"}"); fw.flush(); fw.close(); showInfo(fileName); } /** * 获取路径的最后面字符串<br> * 如：<br> * <code>str = "com.b510.base.bean.User"</code><br> * <code> return "User";<code> * @param str * @return */ public String getLastChar(String str) { if ((str != null) && (str.length() > 0)) { int dot = str.lastIndexOf('.'); if ((dot > -1) && (dot < (str.length() - 1))) { return str.substring(dot + 1); } } return str; } /** * 把第一个字母变为小写<br> * 如：<br> * <code>str = "UserDao";</code><br> * <code>return "userDao";</code> * @param str * @return */ public String getLowercaseChar(String str){ return str.substring(0,1).toLowerCase()+str.substring(1); } /** * 显示信息 * @param info */ public void showInfo(String info){ System.out.println("创建文件："+ info+ "成功！"); } /** * 获取系统时间 * @return */ public static String getDate(){ SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd"); return simpleDateFormat.format(new Date()); } }