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Chopper
2021-09-27 14:50:19 +08:00
parent 87c82ce4d3
commit 444b617c63
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345
framework/src/main/java/cn/lili/generator/CodeGenerator.java
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package cn.lili.generator;
import cn.hutool.core.util.StrUtil;
import cn.lili.common.exception.ServiceException;
import cn.lili.common.utils.StringUtils;
import cn.lili.generator.bean.Entity;
import org.beetl.core.Configuration;
import org.beetl.core.GroupTemplate;
import org.beetl.core.Template;
import org.beetl.core.resource.ClasspathResourceLoader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/**
* 代码生成器 Mybatis-Plus
*
* @author Chopper
*/
public class CodeGenerator {
/**
* 代码生成在哪个项目
*/
private static final String PROJECT = "framework";
/**
* 代码生成在哪个包下边
*/
private static final String PACKAGES = "cn.lili.modules.";
/**
* modules
*/
private static final String MODULES = "message";
/**
* 实体类名
* 建议仅需修改
*/
private static final String CLASS_NAME = "ShortLink";
/**
* 类说明描述
* 建议仅需修改
*/
private static final String DESCRIPTION = "短链接";
/**
* 作者名
* 建议仅需修改
*/
private static final String AUTHOR = "Chopper";
/**
* 数据库表名前缀
* 下方请根据需要修改
*/
private static final String TABLE_PRE = "li_";
/**
* 主键类型
*/
private static final String PRIMARY_KEY_TYPE = "String";
/**
* endity
*/
private static final String ENTITY_PACKAGE = PACKAGES + MODULES + ".entity";
/**
* dao
*/
private static final String DAO_PACKAGE = PACKAGES + MODULES + ".mapper";
/**
* service
*/
private static final String SERVICE_PACKAGE = PACKAGES + MODULES + ".service";
/**
* serviceImpl
*/
private static final String SERVICE_IMPL_PACKAGE = PACKAGES + MODULES + ".serviceimpl";
/**
* controller
*/
private static final String CONTROLLER_PACKAGE = PACKAGES + MODULES + ".controller";
/**
* 运行该主函数即可生成代码
*
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
//模板路径
ClasspathResourceLoader resourceLoader = new ClasspathResourceLoader("/templates/");
Configuration cfg = Configuration.defaultConfiguration();
GroupTemplate gt = new GroupTemplate(resourceLoader, cfg);
//生成代码
generateCode(gt);
//根据类名删除生成的代码
// deleteCode(className);
}
/**
* 生成代码
*
* @param gt
* @throws IOException
*/
private static void generateCode(GroupTemplate gt) throws IOException {
Template entityTemplate = gt.getTemplate("entity.btl");
Template daoTemplate = gt.getTemplate("mapper.btl");
Template serviceTemplate = gt.getTemplate("service.btl");
Template serviceImplTemplate = gt.getTemplate("serviceImpl.btl");
Template controllerTemplate = gt.getTemplate("controller.btl");
Template mapperXmlTemplate = gt.getTemplate("mapperXml.btl");
Entity entity = new Entity();
entity.setEntityPackage(ENTITY_PACKAGE);
entity.setDaoPackage(DAO_PACKAGE);
entity.setServicePackage(SERVICE_PACKAGE);
entity.setServiceImplPackage(SERVICE_IMPL_PACKAGE);
entity.setControllerPackage(CONTROLLER_PACKAGE);
entity.setAuthor(AUTHOR);
entity.setClassName(CLASS_NAME);
entity.setTableName(TABLE_PRE + StringUtils.camel2Underline(CLASS_NAME));
entity.setClassNameLowerCase(name(CLASS_NAME, false));
entity.setDescription(DESCRIPTION);
entity.setPrimaryKeyType(PRIMARY_KEY_TYPE);
OutputStream out = null;
//生成实体类代码
entityTemplate.binding("entity", entity);
String entityResult = entityTemplate.render();
System.out.println(entityResult);
//创建文件
String entityFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(ENTITY_PACKAGE) + "/" + CLASS_NAME + ".java";
File entityFile = new File(entityFileUrl);
File entityDir = entityFile.getParentFile();
if (!entityDir.exists()) {
entityDir.mkdirs();
}
if (!entityFile.exists()) {
//若文件存在则不重新生成
entityFile.createNewFile();
out = new FileOutputStream(entityFile);
entityTemplate.renderTo(out);
}
//生成dao代码
daoTemplate.binding("entity", entity);
String daoResult = daoTemplate.render();
System.out.println(daoResult);
//创建文件
String daoFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(DAO_PACKAGE) + "/" + CLASS_NAME + "Mapper.java";
File daoFile = new File(daoFileUrl);
File daoDir = daoFile.getParentFile();
if (!daoDir.exists()) {
daoDir.mkdirs();
}
if (!daoFile.exists()) {
//若文件存在则不重新生成
daoFile.createNewFile();
out = new FileOutputStream(daoFile);
daoTemplate.renderTo(out);
}
//生成service代码
serviceTemplate.binding("entity", entity);
String serviceResult = serviceTemplate.render();
System.out.println(serviceResult);
//创建文件
String serviceFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(SERVICE_PACKAGE) + "/" + CLASS_NAME + "Service.java";
File serviceFile = new File(serviceFileUrl);
File serviceDir = serviceFile.getParentFile();
if (!serviceDir.exists()) {
serviceDir.mkdirs();
}
if (!serviceFile.exists()) {
//若文件存在则不重新生成
serviceFile.createNewFile();
out = new FileOutputStream(serviceFile);
serviceTemplate.renderTo(out);
}
//生成serviceImpl代码
serviceImplTemplate.binding("entity", entity);
String serviceImplResult = serviceImplTemplate.render();
System.out.println(serviceImplResult);
//创建文件
System.out.println(System.getProperty("user.dir"));
String serviceImplFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(SERVICE_IMPL_PACKAGE) + "/" + CLASS_NAME + "ServiceImpl.java";
File serviceImplFile = new File(serviceImplFileUrl);
File serviceImplDir = serviceImplFile.getParentFile();
if (!serviceImplDir.exists()) {
serviceImplDir.mkdirs();
}
if (!serviceImplFile.exists()) {
//若文件存在则不重新生成
serviceImplFile.createNewFile();
out = new FileOutputStream(serviceImplFile);
serviceImplTemplate.renderTo(out);
}
//生成controller代码
controllerTemplate.binding("entity", entity);
String controllerResult = controllerTemplate.render();
System.out.println(controllerResult);
//创建文件
String controllerFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(CONTROLLER_PACKAGE) + "/" + CLASS_NAME + "Controller.java";
File controllerFile = new File(controllerFileUrl);
File controllerDir = controllerFile.getParentFile();
if (!controllerDir.exists()) {
controllerDir.mkdirs();
}
if (!controllerFile.exists()) {
//若文件存在则不重新生成
controllerFile.createNewFile();
out = new FileOutputStream(controllerFile);
controllerTemplate.renderTo(out);
}
//生成mapperXml代码
mapperXmlTemplate.binding("entity", entity);
String mapperXmlResult = mapperXmlTemplate.render();
System.out.println(mapperXmlResult);
//创建文件
String mapperXmlFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/resources/mapper/" + CLASS_NAME + "Mapper.xml";
File mapperXmlFile = new File(mapperXmlFileUrl);
File mapperXmlDir = mapperXmlFile.getParentFile();
if (!mapperXmlDir.exists()) {
mapperXmlDir.mkdirs();
}
if (!mapperXmlFile.exists()) {
//若文件存在则不重新生成
mapperXmlFile.createNewFile();
out = new FileOutputStream(mapperXmlFile);
mapperXmlTemplate.renderTo(out);
}
if (out != null) {
out.close();
}
System.out.println("生成代码成功！");
}
/**
* 删除指定类代码
*
* @param className
* @throws IOException
*/
private static void deleteCode(String className) throws IOException {
String entityFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(ENTITY_PACKAGE) + "/" + className + ".java";
File entityFile = new File(entityFileUrl);
if (entityFile.exists()) {
entityFile.delete();
}
String daoFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(DAO_PACKAGE) + "/" + className + "Mapper.java";
File daoFile = new File(daoFileUrl);
if (daoFile.exists()) {
daoFile.delete();
}
String serviceFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(SERVICE_PACKAGE) + "/" + className + "Service.java";
File serviceFile = new File(serviceFileUrl);
if (serviceFile.exists()) {
serviceFile.delete();
}
String serviceImplFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(SERVICE_IMPL_PACKAGE) + "/" + className + "ServiceImpl.java";
File serviceImplFile = new File(serviceImplFileUrl);
if (serviceImplFile.exists()) {
serviceImplFile.delete();
}
String controllerFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/java/" + dotToLine(CONTROLLER_PACKAGE) + "/" + className + "Controller.java";
File controllerFile = new File(controllerFileUrl);
if (controllerFile.exists()) {
controllerFile.delete();
}
String mapperXmlFileUrl = System.getProperty("user.dir") + "/" + PROJECT + "/src/main/resources/mapper/" + className + "Mapper.xml";
File mapperXmlFile = new File(mapperXmlFileUrl);
if (mapperXmlFile.exists()) {
mapperXmlFile.delete();
}
System.out.println("删除代码完毕！");
}
/**
* 点转斜线
*
* @param str
* @return
*/
public static String dotToLine(String str) {
return str.replace(".", "/");
}
/**
* 首字母是否大小写
*
* @param name
* @param isFirstUpper
* @return
*/
public static String name(String name, boolean isFirstUpper) {
if (StrUtil.isBlank(name)) {
throw new ServiceException("name不能为空");
}
if (name.length() == 1) {
if (isFirstUpper) {
return name.toUpperCase();
} else {
return name.toLowerCase();
}
}
StringBuffer sb = new StringBuffer();
if (isFirstUpper) {
sb.append(Character.toUpperCase(name.charAt(0)));
} else {
sb.append(Character.toLowerCase(name.charAt(0)));
}
sb.append(name.substring(1));
return sb.toString();
}
}

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framework/src/main/java/cn/lili/generator/bean/Entity.java
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package cn.lili.generator.bean;
import lombok.Data;
/**
* @author Chopper
*/
@Data
public class Entity {
/**
* 实体类，dao，service，controller目录
*/
private String entityPackage;
private String daoPackage;
private String servicePackage;
private String serviceImplPackage;
private String controllerPackage;
/**
* 作者
*/
private String author;
/**
* 类名
*/
private String className;
/**
* 首字母小写的类名字，用于模版内的变量名称
*/
private String classNameLowerCase;
/**
* 数据库
*/
private String tableName;
/**
* 类说明描述,一般设定关键字即可 例如：会员
*/
private String description;
/**
* 主键类型
*/
private String primaryKeyType;
}