priest-generator 是一个以freemarker为模板引擎的代码生成maven插件
- 项目插件引入
<plugin>
<groupId>com.little.g</groupId>
<artifactId>generator-maven-plugin</artifactId>
<version>0.0.1-SNAPSHOT</version>
<configuration>
<tplPath>/tpl</tplPath> //模板存放路径 非必填 默认位于src/main/conf/tpl 目录下
<configurationFile>${project.basedir}/src/main/conf/GenerateConfig.xml</configurationFile> //生成配置所在目录
<overwrite>false</overwrite>
<webSource>/src/main/webapp/WEB-INF/jsp</webSource> //生成web页面保存路径 相对于项目根目录的相对路径
</configuration>
</plugin>
- 书写模板引擎 ,模板引擎基于freemarker，支持freemarker所有语法 文档参见 Freemarker
例如:
package ${packageName}.service;
import com.little.g.common.dto.ListResultDTO;
import com.little.g.common.params.TimeQueryParam;
import ${packageName}.api.${entityName}Service;
import ${packageName}.dto.${entityName}DTO;
import ${packageName}.mapper.${entityName}Mapper;
import ${packageName}.model.${entityName};
import ${packageName}.model.${entityName}Example;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;
import javax.annotation.Resource;
import java.util.List;
import java.util.stream.Collectors;
/**
* Created by ${author} on 2019/3/9.
*/
@Service("${entityName?uncap_first}Service")
public class ${entityName}ServiceImpl implements ${entityName}Service {
@Resource
private ${entityName}Mapper ${entityName?uncap_first}Mapper;
@Override
public boolean add(${entityName}DTO entity) {
${entityName} ${entityName?uncap_first}=new ${entityName}();
BeanUtils.copyProperties(entity,${entityName?uncap_first});
return ${entityName?uncap_first}Mapper.insertSelective(${entityName?uncap_first})>0;
}
@Override
public ${entityName}DTO get(Integer id) {
${entityName} ${entityName?uncap_first}=${entityName?uncap_first}Mapper.selectByPrimaryKey(id);
if(${entityName?uncap_first} == null){
return null;
}
${entityName}DTO dto=new ${entityName}DTO();
BeanUtils.copyProperties(${entityName?uncap_first},dto);
return dto;
}
@Override
public boolean update(${entityName}DTO entity) {
if(entity.getId() == null) return false;
${entityName} ${entityName?uncap_first}=new ${entityName}();
BeanUtils.copyProperties(entity,${entityName?uncap_first});
return ${entityName?uncap_first}Mapper.updateByPrimaryKeySelective(${entityName?uncap_first})>0;
}
@Override
public boolean delete(Integer id) {
return ${entityName?uncap_first}Mapper.deleteByPrimaryKey(id)>0;
}
@Override
public ListResultDTO<${entityName}DTO> list(TimeQueryParam param) {
ListResultDTO<${entityName}DTO> result=param.getResult(ListResultDTO.class);
${entityName}Example example = new ${entityName}Example();
example.or().andCreateTimeLessThan(param.getLast());
example.setOrderByClause(String.format("create_time desc limit %d",result.getLimit()));
List<${entityName}> list= ${entityName?uncap_first}Mapper.selectByExample(example);
if(CollectionUtils.isEmpty(list)){
return result;
}
result.setLast(list.get(list.size()-1).getCreateTime());
result.setList(list.stream().map(entity->{
${entityName}DTO dto=new ${entityName}DTO();
BeanUtils.copyProperties(entity,dto);
return dto;
}).collect(Collectors.toList()));
return result;
}
}
- 文件生成配置
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration[
<!ELEMENT generatorConfiguration (properties,generateFile+) >
<!ELEMENT properties (property*) >
<!ELEMENT property EMPTY>
<!ELEMENT generateFile (property)>
<!ATTLIST property
name CDATA #REQUIRED
value CDATA #REQUIRED >
<!ATTLIST generateFile
packagePath CDATA #IMPLIED
templateName CDATA #REQUIRED
fileName CDATA #REQUIRED>
]>
<generatorConfiguration>
<!--全局属性 用于替换 generateFile 未配置的tpl 参数-->
<properties>
<property name="packageName" value="com.little.g.demo" />
<property name="author" value="lengligang" />
</properties>
<!--
文件生成配置
packagePath:文件保存目录相对于java source directory
templateName:模板文件名
fileName:生成文件名
property:对应freemarker模板属性名和替换值
-->
<generateFile packagePath="/com/little/g/demo/service" templateName="ServiceImpl.tpl" fileName="OrderServiceImpl.java">
<property name="entityName" value="Order" />
</generateFile>
<!-- web 页面生成配置 -->
<!--
webPath: 相对于 web 存放跟路径（webSource 配置:默认值为 /src/main/webapp/WEB-INF/jsp ）的文件存放位置
templateName: 生成文件所依赖的模板文件名
fileName: 最终生成文件名
property: 模板替换的属性名和值
list: 以list 形式传入freemarker属性列表
attribute 属性
name: 属性名
comment: 描述，管理后台页面显示用
required: 是否必填项，页面显示用
-->
<generateFile webPath="/book" templateName="list.tpl" fileName="book-list.jsp">
<property name="uri" value="/book" />
<property name="module" value="图书" />
<list name="attributes">
<attribute name="name" required="true" comment="书名" />
<attribute name="price" required="false" comment="价格" />
<attribute name="author" required="false" comment="作者" />
<attribute name="publisher" required="false" comment="出版商" />
</list>
</generateFile>
generateFile webPath="/book" templateName="edit.tpl" fileName="book-edit.jsp">
<property name="uri" value="/book" />
<property name="paramName" value="book" />
<property name="module" value="图书" />
<list name="attributes">
<attribute name="name" required="true" comment="书名" />
<attribute name="price" required="false" comment="价格" />
<attribute name="author" required="false" comment="作者" />
<attribute name="publisher" required="false" comment="出版商" />
</list>
</generateFile>
</generatorConfiguration>