AutoGenerator 是 MyBatis-Plus 的代码生成器,通过 AutoGenerator 可以根据模板快速生成代码,方便前后端的工作。
- 添加代码生成器依赖
com.baomidou mybatis-plus-generator 3.5.0
- 添加模板引擎依赖
org.apache.velocity velocity-engine-core 2.3
MyBatis-Plus 支持 Velocity(默认)、Freemarker、Beetl,用户可以选择自己熟悉的模板引擎,如果都不满足您的要求,可以采用自定义模板引擎。
注意!如果您选择了非默认引擎,需要在 AutoGenerator 中 设置模板引擎。
AutoGenerator generator = new AutoGenerator(); // set freemarker engine generator.setTemplateEngine(new FreemarkerTemplateEngine()); // set beetl engine generator.setTemplateEngine(new BeetlTemplateEngine()); // set custom engine (reference class is your custom engine class) generator.setTemplateEngine(new CustomTemplateEngine()); // other config ...
- 编写配置
配置 GlobalConfig
GlobalConfig globalConfig = new GlobalConfig();
globalConfig.setOutputDir(System.getProperty("user.dir") + "/src/main/java");
globalConfig.setAuthor("jobob");
globalConfig.setOpen(false);
配置 DataSourceConfig
DataSourceConfig dataSourceConfig = new DataSourceConfig();
dataSourceConfig.setUrl("jdbc:mysql://localhost:3306/ant?useUnicode=true&useSSL=false&characterEncoding=utf8");
dataSourceConfig.setDriverName("com.mysql.jdbc.Driver");
dataSourceConfig.setUsername("root");
dataSourceConfig.setPassword("password");
- 自定义代码模板
//指定自定义模板路径, 位置:/resources/templates/entity2.java.ftl(或者是.vm)
//注意不要带上.ftl(或者是.vm), 会根据使用的模板引擎自动识别
TemplateConfig templateConfig = new TemplateConfig()
.setEntity("templates/entity2.java");
AutoGenerator mpg = new AutoGenerator();
//配置自定义模板
mpg.setTemplate(templateConfig);
- 自定义属性注入
InjectionConfig injectionConfig = new InjectionConfig() {
//自定义属性注入:abc
//在.ftl(或者是.vm)模板中,通过${cfg.abc}获取属性
@Override
public void initMap() {
Map map = new HashMap<>();
map.put("abc", this.getConfig().getGlobalConfig().getAuthor() + "-mp");
this.setMap(map);
}
};
AutoGenerator mpg = new AutoGenerator();
//配置自定义属性注入
mpg.setCfg(injectionConfig);
entity2.java.ftl
自定义属性注入abc=${cfg.abc}
entity2.java.vm
自定义属性注入abc=$!{cfg.abc}
- Velocity模板引擎
Velocity将Java代码从Web 页面中分离出来,使用Web站点从长远看更容易维护,并且提供了一种可行的JavaServer Pages替代解决方案。
Velocity是一种基于Java的模板引擎,但允许任何人使用简单而强大的模板语言来引用定义在Java代码中的对象。
基本语法 关键字
Velocity关键字都是使用#开头的,如#set、#if、#else、#end、#foreach等
$ 变量
Velocity变量都是使用 开 头 的 , 如 : 开头的,如: 开头的,如:name、$msg
{}变量
Velocity对于需要明确表示的Velocity变量,可以使用{}将变量包含起来。如在页面中,需要有 $ someoneName这种内容,此时为了让Velocity能够区分,可以使用${someone}Name。
!变量
如果某个Velocity变量不存在,那么页面中就会显示$ xxx的形式,为了避免这种形式,可以在变量名称前加上!如页面中含有$ msg,如果msg有值,将显示msg的值;如果不存在就会显示$ msg。这是我们不希望看到的,为了把不存在的变量显示为空白,可以使用$!msg。
变量
变量定义
#set($root = "www") #set($name = "index") #set($template = "$root/$name") $template
执行输出结果
www/index
变量赋值
赋值的左边必须是一个变量,或者是属性的引用。右边可以是:变量引用、字面字符串、属性引用、方法引用、字面数字、数组
#set($name = $bill) ##变量引用 #set($name.pre = "monica") ##字符串 #set($name.last = $address.num) ##属性引用 #set($name.mid = $hotel.find($web)) ##方法引用 #set($name.num = 123) ##数字 #set($name.say = ["yes",$my,"yes"]) ##数组
velocity会将属性解释为属性的get方法,如:
$foo.Bar 等同于 $foo.getBar()
$foo.User("join") 等同于 $foo.getUser("join")
$foo.Request.ServerName 等同于 $foo.getRequest().getServerName()
转义字符’’
#set($mail = "foo") $mail $mail \$mail \$mail
执行结果
foo $mail foo $mail
循环
#foreach( $num in [2..-2])
this is $num.
#end
this is 2. this is 1. this is 0. this is -1. this is -2
条件
#if(condition) ...... #elseif(condition) ...... #else ...... #end
关系和逻辑操作符
&& 并且 || 或者 ! 取反
注释
##单行注释
#*
多行的注释
*#
- demo
spring-boot-plus代码生成器入口类
package test;
public class SpringBootPlusGenerator {
public static void main(String[] args) {
CodeGenerator codeGenerator = new CodeGenerator();
// 公共配置
// 数据库配置
codeGenerator
.setUserName("root")
.setPassword("root")
.setDriverName("com.mysql.cj.jdbc.Driver")
.setDriverUrl("jdbc:mysql://localhost:3306/nhyj?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC");
// 包信息
codeGenerator
.setProjectPackagePath("com/sinosoft/springbootplus")
.setParentPackage("com.sinosoft.springbootplus");
// 组件作者等配置
codeGenerator
.setProjectName("jwpx")
.setModuleName("project")
.setAuthor("fan")
.setPkIdColumnName("id");
// 生成策略
codeGenerator
.setGeneratorStrategy(CodeGenerator.GeneratorStrategy.ALL)
.setPageListOrder(true)
.setParamValidation(true);
// 生成实体映射相关代码,可用于数据库字段更新
// 当数据库字段更新时,可自定义自动生成哪些那文件
codeGenerator
.setGeneratorEntity(true)
.setGeneratorQueryParam(true)
.setGeneratorQueryVo(true);
// 生成业务相关代码
codeGenerator
.setGeneratorController(true)
.setGeneratorService(true)
.setGeneratorServiceImpl(true)
.setGeneratorMapper(true)
.setGeneratorMapperXml(true)
.setGeneratorEditHtml(true)
.setGeneratorListHtml(true)
.setGeneratiorEvent(true)
.setMockJs(true)
.setInterfaceJs(true);
// 是否生成Shiro RequiresPermissions注解
codeGenerator.setRequiresPermissions(true);
// 是否覆盖已有文件
codeGenerator.setFileOverride(true);
// 初始化公共变量
codeGenerator.init();
// 需要生成的表数组
// xxx,yyy,zzz为需要生成代码的表名称
String[] tables = {
"sys_dict"
};
//如果生成html则设置html目录,aa/bb/cc =》["aa","bb","cc"]
codeGenerator.setPath(new String[]{"user","test"});
// 循环生成
for (String table : tables) {
// 设置需要生成的表名称
codeGenerator.setTableName(table);
// 生成代码
codeGenerator.generator();
}
}
}
spring-boot-plus代码生成器
package test;
import cn.hutool.core.util.StrUtil;
import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.core.toolkit.StringPool;
import com.baomidou.mybatisplus.generator.AutoGenerator;
import com.baomidou.mybatisplus.generator.InjectionConfig;
import com.baomidou.mybatisplus.generator.config.*;
import com.baomidou.mybatisplus.generator.config.po.TableFill;
import com.baomidou.mybatisplus.generator.config.po.TableInfo;
import com.baomidou.mybatisplus.generator.config.rules.DateType;
import com.baomidou.mybatisplus.generator.config.rules.NamingStrategy;
import lombok.Data;
import lombok.experimental.Accessors;
import org.apache.commons.lang3.StringUtils;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Data
@Accessors(chain = true)
public class CodeGenerator {
private String userName;
private String password;
private String driverName;
private String driverUrl;
private String projectPackagePath;
private String parentPackage;
private String packageController = "controller";
// ############################ 自定义配置部分 start ############################
private String moduleName;
private String projectName ="";
private String author;
private String tableName;
private String pkIdColumnName = "id";
private GeneratorStrategy generatorStrategy = GeneratorStrategy.ALL;
public enum GeneratorStrategy {
SIMPLE, NORMAL, ALL
}
private boolean pageListOrder = false;
private boolean paramValidation = true;
private boolean generatorEntity;
private boolean generatorController;
private boolean generatorService;
private boolean generatorServiceImpl;
private boolean generatorMapper;
private boolean generatorMapperXml;
private boolean generatiorEvent;
private boolean generatorListHtml;
private boolean generatorEditHtml;
private boolean generatorActivitiTable;
private boolean generatorQueryParam;
private boolean generatorQueryVo;
private boolean requiresPermissions;
private boolean mockJs;
private boolean interfaceJs;
// ############################ 自定义配置部分 end ############################
private String commonParentPackage;
private String mybatisParentPackage;
private String superEntity;
private String superController;
private String superService;
private String superServiceImpl;
private String superQueryParam;
private String[] superEntityCommonColumns;
// 公共类包路径
private String commonIdParam;
private String commonApiResult;
private String commonOrderEnum;
private String commonOrderQueryParam;
private String commonPaging;
private boolean fileOverride;
// 自定义需要填充的字段
private List tableFillList = new ArrayList<>();
private String[] path;
public void init() {
this.commonParentPackage = this.parentPackage + ".common";
this.mybatisParentPackage =this.parentPackage + ".mybatis";
// 父类包路径
this.superEntity = this.commonParentPackage + ".entity.baseEntity";
this.superController = this.commonParentPackage + ".controller.baseController";
this.superService = this.mybatisParentPackage + ".service.baseService";
this.superServiceImpl = this.mybatisParentPackage + ".service.impl.baseServiceImpl";
this.superQueryParam = this.mybatisParentPackage + ".param.QueryParam";
this.superEntityCommonColumns = new String[]{};
// 公共类包路径
this.commonIdParam = this.commonParentPackage + ".param.IdParam";
this.commonApiResult = this.commonParentPackage + ".api.ApiResult";
this.commonOrderEnum = this.commonParentPackage + ".enums.OrderEnum";
this.commonOrderQueryParam = this.mybatisParentPackage + ".param.OrderQueryParam";
this.commonPaging = this.mybatisParentPackage+".vo.Paging";
tableFillList.add(new TableFill("update_time", FieldFill.UPDATE));
tableFillList.add(new TableFill("update_by", FieldFill.UPDATE));
tableFillList.add(new TableFill("create_time", FieldFill.INSERT));
tableFillList.add(new TableFill("create_by", FieldFill.INSERT));
}
public void generator() {
// 代码生成器
AutoGenerator mpg = new AutoGenerator();
// 全局配置
GlobalConfig gc = new GlobalConfig();
String projectPath = System.getProperty("user.dir");
gc.setOutputDir(projectPath + "/"+projectName+"/src/main/java");
gc.setAuthor(author);
gc.setOpen(false); // 是否打开输出目录
gc.setSwagger2(true); // 启用swagger注解
gc.setIdType(IdType.ID_WORKER); // 主键类型:ID_WORKER
gc.setServiceName("%sService"); // 自定义文件命名,注意 %s 会自动填充表实体属性!
gc.setFileOverride(fileOverride); // 是否覆盖已有文件
gc.setDateType(DateType.ONLY_DATE); // 设置日期类型为Date
mpg.setGlobalConfig(gc);
// 数据源配置
DataSourceConfig dsc = new DataSourceConfig();
dsc.setUrl(driverUrl);
// dsc.setSchemaName("public");
dsc.setDriverName(driverName);
dsc.setUsername(userName);
dsc.setPassword(password);
// 设置自定义查询
dsc.setDbQuery(new com.sinosoft.springbootplus.mybatis.generator.config.SpringBootPlusMySqlQuery());
mpg.setDataSource(dsc);
// 包配置
PackageConfig pc = new PackageConfig();
pc.setModuleName(moduleName);
pc.setParent(parentPackage);
pc.setController(packageController);
pc.setService("application.service");
pc.setServiceImpl("application.service.impl");
pc.setMapper("domain.mapper");
pc.setEntity("domain.entity");
mpg.setPackageInfo(pc);
// 自定义配置
InjectionConfig cfg = new InjectionConfig() {
@Override
public void initMap() {
String camelTableName = underlineToCamel(tableName);
String pascalTableName = underlineToPascal(tableName);
String colonTableName = underlineTocolon(tableName);
Map map = new HashMap<>();
map.put("customField", "Hello " + this.getConfig().getGlobalConfig().getAuthor());
// 查询参数包路径
String queryParamPackage = parentPackage + StringPool.DOT + pc.getModuleName() + ".param";
map.put("queryParamPackage", queryParamPackage);
// 查询参数类路径
map.put("queryParamPath", queryParamPackage + StringPool.DOT + pascalTableName + "QueryParam");
// 查询参数共公包路径
map.put("queryParamCommonPath", superQueryParam);
// 查询参数共公包路径
map.put("idParamPath", commonIdParam);
// 响应结果包路径
String queryVoPackage = parentPackage + StringPool.DOT + pc.getModuleName() + ".vo";
map.put("queryVoPackage", queryVoPackage);
// 响应结果类路径
map.put("queryVoPath", queryVoPackage + StringPool.DOT + pascalTableName + "QueryVo");
// 实体对象名称
map.put("entityObjectName", camelTableName);
// service对象名称
map.put("serviceObjectName", camelTableName + "Service");
// mapper对象名称
map.put("mapperObjectName", camelTableName + "Mapper");
// 主键ID列名
map.put("pkIdColumnName", pkIdColumnName);
// 主键ID驼峰名称
map.put("pkIdCamelName", underlineToCamel(pkIdColumnName));
// 导入分页类
map.put("paging", commonPaging);
// 导入排序枚举
map.put("orderEnum", commonOrderEnum);
// ApiResult
map.put("apiResult", commonApiResult);
// 分页列表查询是否排序
map.put("pageListOrder", pageListOrder);
// 导入排序查询参数类
map.put("orderQueryParamPath", commonOrderQueryParam);
// 代码生成策略
map.put("generatorStrategy", generatorStrategy);
// 代码Validation校验
map.put("paramValidation", paramValidation);
// 冒号连接的表名称
map.put("colonTableName", colonTableName);
// 是否生成Shiro RequiresPermissions注解
map.put("requiresPermissions", requiresPermissions);
//================页面生成部分(开始)========
if(generatorListHtml || generatorEditHtml){
map.put("baseLayFilter",StringUtils.join(path,"-")+"-"+camelTableName+"List");
map.put("baseEditPath",StringUtils.join(path,"/")+"/"+camelTableName+"Edit");
}
//首字母大写的表名
map.put("TableName", StrUtil.upperFirst(camelTableName));
//首字母小写的表名
map.put("tableName",camelTableName);
map.put("publishPackage","com.sinosoft.springbootplus."+moduleName+".application.event.publish");
map.put("pubisherClass",pascalTableName+"Pubisher");
map.put("subscriptionPackage","com.sinosoft.springbootplus."+moduleName+".application.event.subscription");
map.put("subscriptionClass",pascalTableName+"Subscription");
map.put("domainPackage","com.sinosoft.springbootplus."+moduleName+".domain.service");
map.put("domainClass",pascalTableName+"Domain");
map.put("domainClassName",camelTableName+"Domain");
//================页面生成部分(结束)========
this.setMap(map);
}
};
List focList = new ArrayList<>();
// 生成mapper xml
if (generatorMapperXml) {
focList.add(new FileOutConfig("/templates/mapper.xml.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
// 自定义输入文件名称
return projectPath + "/"+projectName+"/src/main/resources/mapper/" + pc.getModuleName()
+ "/" + tableInfo.getEntityName() + "Mapper" + StringPool.DOT_XML;
}
});
}
// 自定义queryParam模板
if (generatorQueryParam) {
focList.add(new FileOutConfig("/templates/queryParam.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath +"/"+projectName+ "/src/main/java/" + projectPackagePath + "/" + pc.getModuleName() + "/param/" + tableInfo.getEntityName() + "QueryParam" + StringPool.DOT_JAVA;
}
});
}
// 自定义queryVo模板
if (generatorQueryVo) {
focList.add(new FileOutConfig("/templates/queryVo.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath + "/"+projectName+"/src/main/java/" + projectPackagePath + "/" + pc.getModuleName() + "/vo/" + tableInfo.getEntityName() + "QueryVo" + StringPool.DOT_JAVA;
}
});
}
if(generatiorEvent){
focList.add(new FileOutConfig("/templates/pubisher.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath + "/"+projectName+"/src/main/java/" + projectPackagePath + "/" + pc.getModuleName() + "/application/event/publish/" + tableInfo.getEntityName() + "Pubisher" + StringPool.DOT_JAVA;
}
});
focList.add(new FileOutConfig("/templates/subscription.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath + "/"+projectName+"/src/main/java/" + projectPackagePath + "/" + pc.getModuleName() + "/application/event/subscription/"+ tableInfo.getEntityName() + "Subscription" + StringPool.DOT_JAVA;
}
});
focList.add(new FileOutConfig("/templates/domain.java.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
return projectPath + "/"+projectName+"/src/main/java/" + projectPackagePath + "/" + pc.getModuleName() + "/domain/service/" + tableInfo.getEntityName() + "Domain" + StringPool.DOT_JAVA;
}
});
}
// 自定义generatorListHtml模板
if (generatorListHtml) {
focList.add(new FileOutConfig("/templates/list.html.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "List.html";
}
});
}
// 自定义generatorListHtml模板
if (generatorEditHtml) {
focList.add(new FileOutConfig("/templates/edit.html.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "Edit.html";
}
});
}
//生成mock.js
if(mockJs){
focList.add(new FileOutConfig("/templates/mock.js.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "Mock.js";
}
});
}
//生成接口文件
if(interfaceJs){
focList.add(new FileOutConfig("/templates/interface.js.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "Interface.js";
}
});
}
if(generatorActivitiTable){
focList.add(new FileOutConfig("/templates/activitiList.html.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "List.html";
}
});
focList.add(new FileOutConfig("/templates/activitiList.js.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + ".js";
}
});
focList.add(new FileOutConfig("/templates/edit.html.vm") {
@Override
public String outputFile(TableInfo tableInfo) {
String camelTableName = underlineToCamel(tableInfo.getName());
return projectPath + "/"+projectName+"/src/main/webapp/src/views/" + StringUtils.join(path,"/") + "/" +camelTableName + "Edit.html";
}
});
}
cfg.setFileOutConfigList(focList);
mpg.setCfg(cfg);
// 模版生成配置,设置为空,表示不生成
TemplateConfig templateConfig = new TemplateConfig();
// xml使用自定义输出
templateConfig.setXml(null);
// 是否生成entity
if (!generatorEntity) {
templateConfig.setEntity(null);
}
// 是否生成controller
if (!generatorController) {
templateConfig.setController(null);
}
// 是否生成service
if (!generatorService) {
templateConfig.setService(null);
}
// 是否生成serviceImpl
if (!generatorServiceImpl) {
templateConfig.setServiceImpl(null);
}
// 是否生成mapper
if (!generatorMapper) {
templateConfig.setMapper(null);
}
mpg.setTemplate(templateConfig);
// 策略配置
StrategyConfig strategy = new StrategyConfig();
strategy.setNaming(NamingStrategy.underline_to_camel);
strategy.setColumnNaming(NamingStrategy.underline_to_camel);
strategy.setSuperEntityClass(superEntity);
strategy.setEntityLombokModel(true);
strategy.setRestControllerStyle(true);
strategy.setSuperControllerClass(superController);
strategy.setSuperServiceClass(superService);
strategy.setSuperServiceImplClass(superServiceImpl);
strategy.setInclude(tableName);
strategy.setSuperEntityColumns(superEntityCommonColumns);
strategy.setControllerMappingHyphenStyle(true);
//逻辑删除字段名称
strategy.setLogicDeleteFieldName("deleted");
//乐观锁
strategy.setVersionFieldName("version");
strategy.setTableFillList(tableFillList);
//strategy.setTablePrefix(pc.getModuleName() + "_");
mpg.setStrategy(strategy);
mpg.execute();
}
public static String underlineToCamel(String underline) {
if (StringUtils.isNotBlank(underline)) {
return NamingStrategy.underlineToCamel(underline);
}
return null;
}
public static String underlineToPascal(String underline) {
if (StringUtils.isNotBlank(underline)) {
return NamingStrategy.capitalFirst(NamingStrategy.underlineToCamel(underline));
}
return null;
}
public static String underlineTocolon(String underline) {
if (StringUtils.isNotBlank(underline)) {
String string = underline.toLowerCase();
return string.replaceAll("_", ":");
}
return null;
}
public static void main(String[] args) {
System.out.println(underlineTocolon("sys_user"));
}
}
自定义模板
#foreach($field in ${table.fields})
#end



