spring boot 代碼自動生成器

本例,可根據數據庫表名,表結構自動生成controller,service,model,dao,mapper.xml ,減少了程序員們的重復勞動,你是不是最煩每次寫新模塊的時候,新建一個controller ，service然后把 簡單的增刪改查 業務重復的寫一邊？只是表名不一樣而已,其他的邏輯幾乎一模一樣,重復到想吐,這位同學(敲黑板!!!),你找到組織了,當你看到這片文章的時候你的問題就解決了,廢話不多說,開始:

1 準備工具

1 IDEA (隨便哪個版本都可以)

2 mybatis-generator(含一對多,一對一插件,密碼:pntd)

3 模版文件

4 jdk 1.8 環境

5 mysql數據庫

2 開始

1 創建一個spring boot 工程 添加勾選 web,mysql,mybatis 依賴

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點擊next

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注: 可能有的同學會卡到這個界面 一直在resolving ,這時候 點擊左上角file->close project,在進來,刷新下maven 依賴 就可以了,如下圖:

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2 添加maven 的pom依賴


<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">

<modelVersion>4.0.0</modelVersion>

<groupId>com.ytx</groupId>

<artifactId>store</artifactId>

<version>1.0-SNAPSHOT</version>

<packaging>jar</packaging>

<properties>

<java.version>1.8</java.version>

</properties>

    <parent>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-parent</artifactId>

<version>1.5.10.RELEASE</version>

</parent>

<dependencies>

        <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>

        <dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-configuration-processor</artifactId>

<optional>true</optional>

</dependency>

        <dependency>

<groupId>commons-codec</groupId>

<artifactId>commons-codec</artifactId>

</dependency>

<dependency>

<groupId>org.apache.commons</groupId>

<artifactId>commons-lang3</artifactId>

<version>3.6</version>

</dependency>

<dependency>

<groupId>com.google.guava</groupId>

<artifactId>guava</artifactId>

<version>23.0</version>

</dependency>

        <dependency>

<groupId>mysql</groupId>

<artifactId>mysql-connector-java</artifactId>

<scope>runtime</scope>

</dependency>

        <dependency>

<groupId>org.mybatis.spring.boot</groupId>

<artifactId>mybatis-spring-boot-starter</artifactId>

<version>1.3.2</version>

</dependency>

        <dependency>

<groupId>tk.mybatis</groupId>

<artifactId>mapper-spring-boot-starter</artifactId>

<version>1.1.4</version>

</dependency>

        <dependency>

<groupId>com.github.pagehelper</groupId>

<artifactId>pagehelper-spring-boot-starter</artifactId>

<version>1.2.2</version>

</dependency>

        <dependency>

<groupId>com.alibaba</groupId>

<artifactId>fastjson</artifactId>

<version>1.2.44</version>

</dependency>

        <dependency>

<groupId>com.alibaba</groupId>

<artifactId>druid-spring-boot-starter</artifactId>

<version>1.1.6</version>

</dependency>

        <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>

        <dependency>

<groupId>dom4j</groupId>

<artifactId>dom4j</artifactId>

<version>1.6.1</version>

</dependency>

        <dependency>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-starter-data-redis</artifactId>

</dependency>

        <dependency>

<groupId>cn.hutool</groupId>

<artifactId>hutool-all</artifactId>

<version>4.1.1</version>

</dependency>

        <dependency>

<groupId>cn.jpush.api</groupId>

<artifactId>jpush-client</artifactId>

<version>3.3.7</version>

</dependency>

        <dependency>

<groupId>io.jsonwebtoken</groupId>

<artifactId>jjwt</artifactId>

<version>0.6.0</version>

</dependency>

</dependencies>

<build>

<plugins>

<plugin>

<groupId>org.springframework.boot</groupId>

<artifactId>spring-boot-maven-plugin</artifactId>

</plugin>

<plugin>

<artifactId>maven-compiler-plugin</artifactId>

<configuration>

<source>${java.version}</source>

<target>${java.version}</target>

<encoding>UTF-8</encoding>

</configuration>

</plugin>

<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-archetype-plugin</artifactId>

<version>2.2</version>

</plugin>

</plugins>

</build>

<repositories>

<repository>

<id>aliyun-repos</id>

<url>http://maven.aliyun.com/nexus/content/groups/public/</url>

<snapshots>

<enabled>false</enabled>

</snapshots>

</repository>

</repositories>

<pluginRepositories>

<pluginRepository>

<id>aliyun-plugin</id>

<url>http://maven.aliyun.com/nexus/content/groups/public/</url>

<snapshots>

<enabled>false</enabled>

</snapshots>

</pluginRepository>

</pluginRepositories>

</project>

2 在src/main/java/com.generator下創建 core 目錄 并拷貝一下代碼到目錄中:

/**
 * 項目常量
 */
public final class ProjectConstant {
    public static final String BASE_PACKAGE = "com.generator";//項目基礎包名稱，根據自己公司的項目修改

    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 INPUT_PACKAGE=BASE_PACKAGE+".input";//input 所在包

    public static final String MAPPER_INTERFACE_REFERENCE = BASE_PACKAGE + ".core.Mapper";//Mapper插件基礎接口的完全限定名

}

此類定義生成的 包的名字
3 在src/test/java 下創建 CodeGenerator類

/**
 * 代碼生成器，根據數據表名稱生成對應的Model、Mapper、Service、Controller簡化開發。
 */
public class CodeGenerator {
    //JDBC配置，請修改為你項目的實際配置
    private static final String JDBC_URL = "jdbc:mysql://localhost:3306/ytx";
    private static final String JDBC_USERNAME = "root";
    private static final String JDBC_PASSWORD = "root";
    private static final String JDBC_DIVER_CLASS_NAME = "com.mysql.jdbc.Driver";

    private static final String PROJECT_PATH = System.getProperty("user.dir");//項目在硬盤上的基礎路徑
    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文件路徑
    private static final String RESOURCES_PATH = "/src/main/resources";//資源文件路徑

    private static final String PACKAGE_PATH_SERVICE = packageConvertPath(SERVICE_PACKAGE);//生成的Service存放路徑
    private static final String PACKAGE_PATH_SERVICE_IMPL = packageConvertPath(SERVICE_IMPL_PACKAGE);//生成的Service實現存放路徑
    private static final String PACKAGE_PATH_CONTROLLER = packageConvertPath(CONTROLLER_PACKAGE);//生成的Controller存放路徑
    private static final String PACKAGE_PATH_INPUT = packageConvertPath(INPUT_PACKAGE);//生成的Input存放路徑


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

    public static void main(String[] args) {
        genCode("admin_user");//管理員用戶表
        //genCode("user");
        genCode("role");//角色表
        genCode("menu");//菜單表
        genCode("role_menu");//角色—菜單表
        genCode("sys_dict");//字典表
        //genCodeByCustomModelName("輸入表名","輸入自定義Model名稱");
    }

    /**
     * 通過數據表名稱生成代碼，Model 名稱通過解析數據表名稱獲得，下劃線轉大駝峰的形式。
     * 如輸入表名稱 "t_user_detail" 將生成 TUserDetail、TUserDetailMapper、TUserDetailService ...
     * @param tableNames 數據表名稱...
     */
    public static void genCode(String... tableNames) {
        for (String tableName : tableNames) {
            String modelName=tableNameConvertUpperCamel(tableName);
            genCodeByCustomModelName(tableName, modelName);
        }
    }

    /**
     * 通過數據表名稱，和自定義的 Model 名稱生成代碼
     * 如輸入表名稱 "t_user_detail" 和自定義的 Model 名稱 "User" 將生成 User、UserMapper、UserService ...
     * @param tableName 數據表名稱
     * @param modelName 自定義的 Model 名稱
     */
    public static void genCodeByCustomModelName(String tableName, String modelName) {
        //genModelAndMapper(tableName, modelName);
        genService(tableName, modelName);
        genController(tableName, modelName);
        genInput(tableName,modelName);

//        genModelAndMapper();
    }



    /**
     * 自動生成model和mapper
     * @param tableName
     * @param 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);
        pluginConfiguration.setConfigurationType("");
        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", "Mysql", true, null));
        tableConfiguration.setCountByExampleStatementEnabled(true);//通過example 計數
        tableConfiguration.setUpdateByExampleStatementEnabled(true);//通過example 修改
        tableConfiguration.setDeleteByExampleStatementEnabled(true);//通過example 刪除
        tableConfiguration.setSelectByExampleStatementEnabled(true);//通過example 查找
        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失敗", e);
        }

        if (generator.getGeneratedJavaFiles().isEmpty() || generator.getGeneratedXmlFiles().isEmpty()) {
            throw new RuntimeException("生成Model和Mapper失敗：" + 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");
    }

    /**
     * 自動生成service
     * @param tableName
     * @param modelName
     */
    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);

            File file = new File(PROJECT_PATH + JAVA_PATH + PACKAGE_PATH_SERVICE + modelNameUpperCamel + "Service.java");
            if (!file.getParentFile().exists()) {
                file.getParentFile().mkdirs();
            }
            cfg.getTemplate("p-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("p-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失敗", e);
        }
    }

    /**
     * 自動生成controller
     * @param tableName
     * @param modelName
     */
    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);

            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("p-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失敗", e);
        }

    }

    /**
     * 自動生成input對象
     * @param tableName
     * @param modelName
     */
    public static void genInput(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);

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

            System.out.println(modelNameUpperCamel + "Input.java 生成成功");
        } catch (Exception e) {
            throw new RuntimeException("生成Input失敗", 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();//兼容使用大寫的表名
        //return "/" + (tableName.contains("_") ? tableName.replaceAll("_", "/") : tableName);
        return "/"+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);
    }

}

此類為 代碼自動生成器的主函數,配置說明:
JDBC_URL ：數據庫鏈接配置
JDBC_USERNAME: 數據庫賬戶名
JDBC_PASSWORD: 數據庫密碼
只需要配置這三項為你自己數據庫的參數即可, 其他暫時不需要管
4 在src/test目錄下新建文件目錄 resources


image.png

5 配置resources 為資源目錄(右鍵resources)


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6 在resources 目錄下新建 模版包 generator.template


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7 將準備工作中的 模版文件下載下來并放置在此目錄
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注:這三個模版分別為 生成input(輸入參數),controller service接口 和serviceImpl 實現類的三個模版 如果需要可自行擴展
8 將準備工作中的mybatis-generator 文件下載下來解壓后放到工程的根目錄


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9 打開generator.xml 并編輯


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10 配置要生成的表
假設你的數據 表是這樣的:
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admin_user 為管理用戶表
menu 為菜單表
role為角色表
role_menu 為角色-菜單 關聯表
sys_dict 為字典表
admin_user 與role 為 1對1 的關系
role與role_menu 為1 對多關系
role_menu與menu 為1對1關系
根據你自己的情況生成1對1 和 1 對多的關系映射

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如果不是很清楚怎么配置 可移步到
https://blog.csdn.net/bandaotixiruiqiang/article/details/72478361
進行查看,這里不做太多說明
10 打開idea 的終端
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輸入命令

java -jar mybatis.jar -configfile generator.xml -overwrite

敲擊回車 然后model，dao,和xml就自動生成了


image.png

(是不是有點小激動？別急高潮還沒到,到了我會叫的)

接下來我們來生成controller 和 service
1 在src/main/java/com/generator/core 目錄中添加Result類

public class Result<T> {

    private Integer code;

    private String msg;

    private T data;


    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }

    public T getData() {
        return data;
    }

    public void setData(T data) {
        this.data = data;
    }
}

2 在src/main/java/com.generator 下添加util 目錄并在目錄中添加ResultUtil 工具類

public class ResultUtil {

    public static Result success(Object object){
        Result result = new Result();
        result.setCode(0);
        result.setData(object);
        result.setMsg("成功");
        return result;
    }

    public static Result success(){
        return success(null);
    }

    public static Result error(Integer code,String msg){
        Result result = new Result();
        result.setCode(code);
        result.setMsg(msg);
        return result;
    }
}

3 添加統一異常處理
在src/main/java/com.generator 下添加 enums 目錄并添加 YTXExceptionType 異常類枚舉(名字可自行定義)


image.png
public enum YTXExceptionType {//錯誤類定義
    CAN_NOT_FIND_VALID_CODE(-1,"未找到驗證碼"),
    MOBILE_INCORRECTNESS(-2,"手機號不正確"),
    VALID_CODE_INCORRECTNESS(-3,"驗證碼不正確"),
    USER_UNKNOWN(-4,"未知用戶"),
    USER_INCORRECT_PASSWORD(-5,"密碼不正確"),
    USER_ALREADY_EXIST(-6,"用戶已存在"),
    DELETE_FAIL(-7,"刪除失敗,id不正確"),
    ROLE_ALREADY_EXIST(-8,"角色code已存在"),
    ROLE_HAS_ADMIN_USER(-9,"當前角色下含有用戶無法刪除"),
    ROLE_NOT_FOUND(-10,"角色不存在"),
    MENU_ALREADY_EXIST(-11,"菜單code已存在"),
    MENU_DELETE_HAS_SUB(-12,"菜單包含子菜單,請先刪除子菜單"),
    MENU_NOT_FOUND(-13,"菜單id不存在"),
    ROLE_MENU_ALREADY_EXIST(-14,"當前角色已存在該菜單")
    ;

    private Integer code;
    private String msg;

    YTXExceptionType(Integer code, String msg){
        this.code=code;
        this.msg=msg;
    }
    public Integer getCode() {
        return code;
    }

    public String getMsg() {
        return msg;
    }
}

在src/main/java/com.generator 下 添加 exception目錄 并添加業務異常類


image.png
public class YTXException extends RuntimeException {
    private Integer code;

    public YTXException(YTXExceptionType exceptionType){
        super(exceptionType.getMsg());
        this.code=exceptionType.getCode();
    }

    public YTXException(Integer code, String msg){
        super(msg);
        this.code = code;
    }

    public YTXException(YTXExceptionType exceptionType, String msg){
        super(msg);
        this.code = exceptionType.getCode();
    }


    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }
}

在src/main/java/com.generator 下添加目錄 handle 并 添加YTXExceptionHandler 異常處理類(名字可自定義)


image.png
@ControllerAdvice
public class YTXExceptionHandler {

    private static final Logger logger = LoggerFactory.getLogger(YTXExceptionHandler.class);

    @ExceptionHandler(value = Exception.class)
    @ResponseBody
    public Result handle(Exception e){
        e.printStackTrace();
        if(e instanceof YTXException){//業務異常
            YTXException ytxException=(YTXException) e;
            return ResultUtil.error(ytxException.getCode(),ytxException.getMessage());
        }else if(e instanceof BindException){//參數傳入異常
            BindException exception=(BindException)e;
            return ResultUtil.error(-99,
                    "參數:["+exception.getFieldError().getField()+"]錯誤," +exception.getFieldError().getDefaultMessage());
        }else if(e instanceof MethodArgumentNotValidException){//參數傳入異常

            MethodArgumentNotValidException exception=(MethodArgumentNotValidException)e;

            BindingResult result=exception.getBindingResult();
            return ResultUtil.error(-99,
                    "參數:["+result.getFieldError().getField()+"]錯誤," +result.getFieldError().getDefaultMessage());
        } else if(e instanceof NoHandlerFoundException) {

            String url=((NoHandlerFoundException) e).getRequestURL();

            return ResultUtil.error(-99,"未知的接口:"+url);

        } else if(e instanceof HttpRequestMethodNotSupportedException) {

            String method=((HttpRequestMethodNotSupportedException) e).getMethod();

            return ResultUtil.error(-99,"請求方式不正確:"+method);

        } else {
            logger.error("[系統異常]",e.getMessage());
            return ResultUtil.error(-1,"[系統異常]");
        }
    }
}

好了 墨跡半天終于到了激動人心的時刻了～～～開始生成我們的控制層代碼
打開CodeGenerator


image.png

找到main方法,調用genCode() 傳入你的表名 點擊左邊箭頭開始生成


image.png

查看下方日志
image.png

成功！！

當當當當～～oh～～no～～oh～～yes～～終于生成了我們的代碼


image.png

讓我們看下controller
image.png

增刪 改查 一個不少
在看下service
image.png

實現類:
image.png

input 為 定義的常態輸入類 內置了 分頁參數 和 關鍵字參數 可根據你自己的需要進行擴展


image.png

終于可以向無聊的重復勞動 說88了～～～喜歡的 點個贊吧～～謝謝

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