springboot项目继承代码生成器

于 2019-12-05 17:42:56 发布
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分类专栏： springboot 文章标签： springbootdemo 代码生成
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/prxhlirr/article/details/103409210

1、创建springboot项目

2、配置poem.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.2.1.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.study</groupId>
	<artifactId>springbootcodegenerator</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>springbootcodegenerator</name>
	<description>Demo project for Spring Boot</description>
	<properties>
		<java.version>1.8</java.version>
	</properties>
	<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<!--代码生成器依赖-->
		<dependency>
			<groupId>org.freemarker</groupId>
			<artifactId>freemarker</artifactId>
			<version>2.3.23</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.mybatis.generator</groupId>
			<artifactId>mybatis-generator-core</artifactId>
			<version>1.3.5</version>
			<scope>test</scope>
		</dependency>
		<!--Spring Boot依赖-->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jdbc</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>
		<!--Oracle JDBC驱动-->
		<dependency>
			<groupId>com.github.noraui</groupId>
			<artifactId>ojdbc7</artifactId>
			<version>12.1.0.2</version>
		</dependency>
		<!--MyBatis 及 插件依赖-->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.3.1</version>
		</dependency>
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.4.4</version>
		</dependency>
		<dependency>
			<groupId>tk.mybatis</groupId>
			<artifactId>mapper</artifactId>
			<version>3.4.0</version>
		</dependency>
		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper</artifactId>
			<version>4.2.1</version>
		</dependency>
		<!--常用库依赖-->
		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.5</version>
		</dependency>
		<dependency>
			<groupId>com.google.guava</groupId>
			<artifactId>guava</artifactId>
			<version>22.0</version>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
			<exclusions>
				<exclusion>
					<groupId>org.junit.vintage</groupId>
					<artifactId>junit-vintage-engine</artifactId>
				</exclusion>
			</exclusions>
		</dependency>
	</dependencies>
	<build>
		<plugins>
			<plugin>
				<groupId>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
			</plugin>
		</plugins>
	</build>
</project>

3、编写项目使用常量类ProjectConstant

package com.study.core.common;

public class ProjectConstant {

    public static final String BASE_PACKAGE = "com.study.project";//项目基础包名称，根据自己公司的项目修改
    public static final String COMMON_PACKAGE = "com.study.core.common";//项目基础包名称，根据自己公司的项目修改
    public static final String MODEL_PACKAGE = BASE_PACKAGE + ".model";//Model所在包
    public static final String MAPPER_PACKAGE = BASE_PACKAGE + ".dao";//Mapper所在包
    public static final String SERVICE_PACKAGE = BASE_PACKAGE + ".service";//Service所在包
    public static final String SERVICE_IMPL_PACKAGE = SERVICE_PACKAGE + ".impl";//ServiceImpl所在包
    public static final String CONTROLLER_PACKAGE = BASE_PACKAGE + ".web";//Controller所在包
    public static final String MAPPER_INTERFACE_REFERENCE = COMMON_PACKAGE + ".Mapper";//Mapper插件基础接口的完全限定名
}

4、编写代码生成器类CodeGenerator

import com.google.common.base.CaseFormat;
import freemarker.template.TemplateExceptionHandler;
import org.apache.commons.lang3.StringUtils;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.*;
import org.mybatis.generator.internal.DefaultShellCallback;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.*;

import static com.study.core.common.ProjectConstant.*;


public class CodeGenerator {

    //JDBC配置，请修改为你项目的实际配置
    private static final String JDBC_URL = "jdbc:oracle:thin:@localhost:1521:orcl";
    private static final String JDBC_USERNAME = "newsManager";
    private static final String JDBC_PASSWORD = "liyz";
    private static final String JDBC_DIVER_CLASS_NAME = "oracle.jdbc.driver.OracleDriver";

    private static final String PROJECT_PATH = System.getProperty("user.dir");//项目在硬盘上的基础路径
    private static final String TEMPLATE_FILE_PATH = PROJECT_PATH + "/src/test/resources/generator/template";//模板位置

    private static final String JAVA_PATH = "/src/main/java"; //java文件路径
    private static final String RESOURCES_PATH = "/src/main/resources";//资源文件路径

    private static final String PACKAGE_PATH_SERVICE = packageConvertPath(SERVICE_PACKAGE);//生成的Service存放路径
    private static final String PACKAGE_PATH_SERVICE_IMPL = packageConvertPath(SERVICE_IMPL_PACKAGE);//生成的Service实现存放路径
    private static final String PACKAGE_PATH_CONTROLLER = packageConvertPath(CONTROLLER_PACKAGE);//生成的Controller存放路径

    private static final String AUTHOR = "CodeGenerator";//@author
    private static final String DATE = new SimpleDateFormat("yyyy/MM/dd").format(new Date());//@date

    public static void main(String[] args) {
        //genCode("test");
        genCodeByCustomModelName("sys_role","SysRole");
    }

    /**
     * 通过数据表名称生成代码，Model 名称通过解析数据表名称获得，下划线转大驼峰的形式。
     * 如输入表名称 "t_user_detail" 将生成 TUserDetail、TUserDetailMapper、TUserDetailService ...
     * @param tableNames 数据表名称...
     */

    public static void genCode(String... tableNames) {
        for (String tableName : tableNames) {
            genCodeByCustomModelName(tableName, null);
        }
    }

    /**
     * 通过数据表名称，和自定义的 Model 名称生成代码
     * 如输入表名称 "t_user_detail" 和自定义的 Model 名称 "User" 将生成 User、UserMapper、UserService ...
     * @param tableName 数据表名称
     * @param modelName 自定义的 Model 名称
     */
    public static void genCodeByCustomModelName(String tableName, String modelName) {
        genModelAndMapper(tableName, modelName);
        genService(tableName, modelName);
        genController(tableName, modelName);
    }


    public static void genModelAndMapper(String tableName, String modelName) {
        Context context = new Context(ModelType.FLAT);
        context.setId("Potato");
        context.setTargetRuntime("MyBatis3Simple");
        context.addProperty(PropertyRegistry.CONTEXT_BEGINNING_DELIMITER, "`");
        context.addProperty(PropertyRegistry.CONTEXT_ENDING_DELIMITER, "`");

        JDBCConnectionConfiguration jdbcConnectionConfiguration = new JDBCConnectionConfiguration();
        jdbcConnectionConfiguration.setConnectionURL(JDBC_URL);
        jdbcConnectionConfiguration.setUserId(JDBC_USERNAME);
        jdbcConnectionConfiguration.setPassword(JDBC_PASSWORD);
        jdbcConnectionConfiguration.setDriverClass(JDBC_DIVER_CLASS_NAME);
        context.setJdbcConnectionConfiguration(jdbcConnectionConfiguration);

        PluginConfiguration pluginConfiguration = new PluginConfiguration();
        pluginConfiguration.setConfigurationType("tk.mybatis.mapper.generator.MapperPlugin");
        pluginConfiguration.addProperty("mappers", MAPPER_INTERFACE_REFERENCE);
        context.addPluginConfiguration(pluginConfiguration);

        JavaModelGeneratorConfiguration javaModelGeneratorConfiguration = new JavaModelGeneratorConfiguration();
        javaModelGeneratorConfiguration.setTargetProject(PROJECT_PATH + JAVA_PATH);
        javaModelGeneratorConfiguration.setTargetPackage(MODEL_PACKAGE);
        context.setJavaModelGeneratorConfiguration(javaModelGeneratorConfiguration);

        SqlMapGeneratorConfiguration sqlMapGeneratorConfiguration = new SqlMapGeneratorConfiguration();
        sqlMapGeneratorConfiguration.setTargetProject(PROJECT_PATH + RESOURCES_PATH);
        sqlMapGeneratorConfiguration.setTargetPackage("mapper");
        context.setSqlMapGeneratorConfiguration(sqlMapGeneratorConfiguration);

        JavaClientGeneratorConfiguration javaClientGeneratorConfiguration = new JavaClientGeneratorConfiguration();
        javaClientGeneratorConfiguration.setTargetProject(PROJECT_PATH + JAVA_PATH);
        javaClientGeneratorConfiguration.setTargetPackage(MAPPER_PACKAGE);
        javaClientGeneratorConfiguration.setConfigurationType("XMLMAPPER");
        context.setJavaClientGeneratorConfiguration(javaClientGeneratorConfiguration);

        TableConfiguration tableConfiguration = new TableConfiguration(context);
        tableConfiguration.setTableName(tableName);
        if (StringUtils.isNotEmpty(modelName))tableConfiguration.setDomainObjectName(modelName);
        tableConfiguration.setGeneratedKey(new GeneratedKey("id", "Oracle", true, null));
        context.addTableConfiguration(tableConfiguration);

        List<String> warnings;
        MyBatisGenerator generator;
        try {
            Configuration config = new Configuration();
            config.addContext(context);
            config.validate();

            boolean overwrite = true;
            DefaultShellCallback callback = new DefaultShellCallback(overwrite);
            warnings = new ArrayList<String>();
            generator = new MyBatisGenerator(config, callback, warnings);
            generator.generate(null);
        } catch (Exception e) {
            throw new RuntimeException("生成Model和Mapper失败", e);
        }

        if (generator.getGeneratedJavaFiles().isEmpty() || generator.getGeneratedXmlFiles().isEmpty()) {
            throw new RuntimeException("生成Model和Mapper失败：" + warnings);
        }
        if (StringUtils.isEmpty(modelName)) modelName = tableNameConvertUpperCamel(tableName);
        System.out.println(modelName + ".java 生成成功");
        System.out.println(modelName + "Mapper.java 生成成功");
        System.out.println(modelName + "Mapper.xml 生成成功");
    }

    public static void genService(String tableName, String modelName) {
        try {
            freemarker.template.Configuration cfg = getConfiguration();

            Map<String, Object> data = new HashMap<>();
            data.put("date", DATE);
            data.put("author", AUTHOR);
            String modelNameUpperCamel = StringUtils.isEmpty(modelName) ? tableNameConvertUpperCamel(tableName) : modelName;
            data.put("modelNameUpperCamel", modelNameUpperCamel);
            data.put("modelNameLowerCamel", tableNameConvertLowerCamel(tableName));
            data.put("basePackage", BASE_PACKAGE);
            data.put("commonPackage", COMMON_PACKAGE);

            File file = new File(PROJECT_PATH + JAVA_PATH + PACKAGE_PATH_SERVICE + modelNameUpperCamel + "Service.java");
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }
            cfg.getTemplate("service.ftl").process(data,
                    new FileWriter(file));
            System.out.println(modelNameUpperCamel + "Service.java 生成成功");

            File file1 = new File(PROJECT_PATH + JAVA_PATH + PACKAGE_PATH_SERVICE_IMPL + modelNameUpperCamel + "ServiceImpl.java");
            if (!file1.getParentFile().exists()) {
                file1.getParentFile().mkdirs();
            }
            cfg.getTemplate("service-impl.ftl").process(data,
                    new FileWriter(file1));
            System.out.println(modelNameUpperCamel + "ServiceImpl.java 生成成功");
        } catch (Exception e) {
            throw new RuntimeException("生成Service失败", e);
        }
    }

    public static void genController(String tableName, String modelName) {
        try {
            freemarker.template.Configuration cfg = getConfiguration();

            Map<String, Object> data = new HashMap<>();
            data.put("date", DATE);
            data.put("author", AUTHOR);
            String modelNameUpperCamel = StringUtils.isEmpty(modelName) ? tableNameConvertUpperCamel(tableName) : modelName;
            data.put("baseRequestMapping", modelNameConvertMappingPath(modelNameUpperCamel));
            data.put("modelNameUpperCamel", modelNameUpperCamel);
            data.put("modelNameLowerCamel", CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_CAMEL, modelNameUpperCamel));
            data.put("basePackage", BASE_PACKAGE);
            data.put("commonPackage", COMMON_PACKAGE);

            File file = new File(PROJECT_PATH + JAVA_PATH + PACKAGE_PATH_CONTROLLER + modelNameUpperCamel + "Controller.java");
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }
            //cfg.getTemplate("controller-restful.ftl").process(data, new FileWriter(file));
            cfg.getTemplate("controller.ftl").process(data, new FileWriter(file));

            System.out.println(modelNameUpperCamel + "Controller.java 生成成功");
        } catch (Exception e) {
            throw new RuntimeException("生成Controller失败", e);
        }

    }

    private static freemarker.template.Configuration getConfiguration() throws IOException {
        freemarker.template.Configuration cfg = new freemarker.template.Configuration(freemarker.template.Configuration.VERSION_2_3_23);
        cfg.setDirectoryForTemplateLoading(new File(TEMPLATE_FILE_PATH));
        cfg.setDefaultEncoding("UTF-8");
        cfg.setTemplateExceptionHandler(TemplateExceptionHandler.IGNORE_HANDLER);
        return cfg;
    }

    private static String tableNameConvertLowerCamel(String tableName) {
        return CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, tableName.toLowerCase());
    }

    private static String tableNameConvertUpperCamel(String tableName) {
        return CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, tableName.toLowerCase());

    }

    private static String tableNameConvertMappingPath(String tableName) {
        tableName = tableName.toLowerCase();//兼容使用大写的表名
        return "/" + (tableName.contains("_") ? tableName.replaceAll("_", "/") : tableName);
    }

    private static String modelNameConvertMappingPath(String modelName) {
        String tableName = CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE, modelName);
        return tableNameConvertMappingPath(tableName);
    }

    private static String packageConvertPath(String packageName) {
        return String.format("/%s/", packageName.contains(".") ? packageName.replaceAll("\\.", "/") : packageName);
    }
}

5、test包下创建resources/generator/template目录

在这里插入图片描述

6、创建service.ftl、service-impl.ftl、 controller.ftl、controller-restful.ftl文件

service.ftl

package ${basePackage}.service;
import ${basePackage}.model.${modelNameUpperCamel};
import ${commonPackage}.Service;


/**
 * Created by ${author} on ${date}.
 */
public interface ${modelNameUpperCamel}Service extends Service<${modelNameUpperCamel}> {

}

service-impl.ftl

package ${basePackage}.service.impl;

import ${basePackage}.dao.${modelNameUpperCamel}Mapper;
import ${basePackage}.model.${modelNameUpperCamel};
import ${basePackage}.service.${modelNameUpperCamel}Service;
import ${commonPackage}.AbstractService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import javax.annotation.Resource;


/**
 * Created by ${author} on ${date}.
 */
@Service
@Transactional
public class ${modelNameUpperCamel}ServiceImpl extends AbstractService<${modelNameUpperCamel}> implements ${modelNameUpperCamel}Service {
    @Resource
    private ${modelNameUpperCamel}Mapper ${modelNameLowerCamel}Mapper;

}

controller.ftl

package ${basePackage}.web;
import ${commonPackage}.BaseController;
import ${commonPackage}.Result;
import ${commonPackage}.ResultGenerator;
import ${basePackage}.model.${modelNameUpperCamel};
import ${basePackage}.service.${modelNameUpperCamel}Service;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.List;

/**
* Created by ${author} on ${date}.
*/
@RestController
@RequestMapping("${baseRequestMapping}")
public class ${modelNameUpperCamel}Controller extends BaseController {
    private static final Logger logger = LoggerFactory.getLogger(${modelNameUpperCamel}Controller.class);

    @Resource
    private ${modelNameUpperCamel}Service ${modelNameLowerCamel}Service;

    @PostMapping("/save")
    public Result add(${modelNameUpperCamel} ${modelNameLowerCamel}) {
        ${modelNameLowerCamel}Service.save(${modelNameLowerCamel});
        return ResultGenerator.genSuccessResult();
    }

    @PostMapping("/delete")
    public Result delete(@RequestParam String id) {
        ${modelNameLowerCamel}Service.deleteById(id);
        return ResultGenerator.genSuccessResult();
    }

    @PostMapping("/update")
    public Result update(${modelNameUpperCamel} ${modelNameLowerCamel}) {
        ${modelNameLowerCamel}Service.update(${modelNameLowerCamel});
        return ResultGenerator.genSuccessResult();
    }

    @PostMapping("/detail")
    public Result detail(@RequestParam String id) {
        ${modelNameUpperCamel} ${modelNameLowerCamel} = ${modelNameLowerCamel}Service.findById(id);
        return ResultGenerator.genSuccessResult(${modelNameLowerCamel});
    }

    @PostMapping("/list")
    public Result list(@RequestParam(defaultValue = "0") Integer page, @RequestParam(defaultValue = "0") Integer size) {
        PageHelper.startPage(page, size);
        List<${modelNameUpperCamel}> list = ${modelNameLowerCamel}Service.findAll();
        PageInfo pageInfo = new PageInfo(list);
        return ResultGenerator.genSuccessResult(pageInfo);
    }

    @PostMapping("/all")
    public Result all() {
        List<${modelNameUpperCamel}> list = ${modelNameLowerCamel}Service.findAll();
        return ResultGenerator.genSuccessResult(list);
    }
}

controller-restful.ftl

package ${basePackage}.web;

import ${commonPackage}.Result;
import ${commonPackage}.ResultGenerator;
import ${basePackage}.model.${modelNameUpperCamel};
import ${basePackage}.service.${modelNameUpperCamel}Service;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;

/**
* Created by ${author} on ${date}.
*/
@RestController
@RequestMapping("${baseRequestMapping}")
public class ${modelNameUpperCamel}Controller {
    @Resource
    private ${modelNameUpperCamel}Service ${modelNameLowerCamel}Service;

    @PostMapping
    public Result add(@RequestBody ${modelNameUpperCamel} ${modelNameLowerCamel}) {
        ${modelNameLowerCamel}Service.save(${modelNameLowerCamel});
        return ResultGenerator.genSuccessResult();
    }

    @DeleteMapping("/{id}")
    public Result delete(@PathVariable Integer id) {
        ${modelNameLowerCamel}Service.deleteById(id);
        return ResultGenerator.genSuccessResult();
    }

    @PutMapping
    public Result update(@RequestBody ${modelNameUpperCamel} ${modelNameLowerCamel}) {
        ${modelNameLowerCamel}Service.update(${modelNameLowerCamel});
        return ResultGenerator.genSuccessResult();
    }

    @GetMapping("/{id}")
    public Result detail(@PathVariable Integer id) {
        ${modelNameUpperCamel} ${modelNameLowerCamel} = ${modelNameLowerCamel}Service.findById(id);
        return ResultGenerator.genSuccessResult(${modelNameLowerCamel});
    }

    @GetMapping
    public Result list(@RequestParam(defaultValue = "0") Integer page, @RequestParam(defaultValue = "0") Integer size) {
        PageHelper.startPage(page, size);
        List<${modelNameUpperCamel}> list = ${modelNameLowerCamel}Service.findAll();
        PageInfo pageInfo = new PageInfo(list);
        return ResultGenerator.genSuccessResult(pageInfo);
    }
}

搞定！

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