基于 screw 实现一个 mvp 的数据库文档功能

pom.xml

@@ -55,6 +55,7 @@
         <hutool.version>5.5.6</hutool.version>
         <easyexcel.verion>2.2.7</easyexcel.verion>
         <velocity.version>2.2</velocity.version>
+        <screw.version>1.0.5</screw.version>
     </properties>
 
     <!-- 依赖声明 -->
@@ -234,6 +235,12 @@
             <version>${velocity.version}</version>
         </dependency>
 
+        <dependency>
+            <groupId>cn.smallbun.screw</groupId>
+            <artifactId>screw-core</artifactId>
+            <version>${screw.version}</version>
+        </dependency>
+
     </dependencies>
 
 

src/main/java/cn/iocoder/dashboard/modules/infra/controller/dbdoc/InfDbDocController.java

@@ -0,0 +1,103 @@
+package cn.iocoder.dashboard.modules.infra.controller.dbdoc;
+
+import cn.hutool.extra.servlet.ServletUtil;
+import cn.smallbun.screw.core.Configuration;
+import cn.smallbun.screw.core.engine.EngineConfig;
+import cn.smallbun.screw.core.engine.EngineFileType;
+import cn.smallbun.screw.core.engine.EngineTemplateType;
+import cn.smallbun.screw.core.execute.DocumentationExecute;
+import cn.smallbun.screw.core.process.ProcessConfig;
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
+import io.swagger.annotations.Api;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.annotation.Resource;
+import javax.servlet.http.HttpServletResponse;
+import javax.sql.DataSource;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.util.Collections;
+
+@Api(tags = "数据库文档")
+@RestController
+@RequestMapping("/infra/db-doc")
+public class InfDbDocController {
+
+    @Resource
+    private DataSourceProperties dataSourceProperties;
+
+    private static final String FILE_OUTPUT_DIR = System.getProperty("java.io.tmpdir") + File.separator
+            + "db-doc";
+    private static final EngineFileType FILE_OUTPUT_TYPE = EngineFileType.HTML; // 可以设置 Word 或者 Markdown 格式
+    private static final String DOC_FILE_NAME = "数据库文档";
+    private static final String DOC_VERSION = "1.0.0";
+    private static final String DOC_DESCRIPTION = "文档描述";
+
+    @Resource
+    private DataSource dataSource;
+
+    @GetMapping("/export-html")
+    public synchronized void exportHtml(HttpServletResponse response) throws FileNotFoundException {
+        // 创建 screw 的配置
+        Configuration config = Configuration.builder()
+                .version(DOC_VERSION)  // 版本
+                .description(DOC_DESCRIPTION) // 描述
+                .dataSource(buildDataSource()) // 数据源
+                .engineConfig(buildEngineConfig()) // 引擎配置
+                .produceConfig(buildProcessConfig()) // 处理配置
+                .build();
+
+        // 执行 screw，生成数据库文档
+        new DocumentationExecute(config).execute();
+
+        // 读取，返回
+        ServletUtil.write(response,
+                new FileInputStream(FILE_OUTPUT_DIR + File.separator + DOC_FILE_NAME + FILE_OUTPUT_TYPE.getFileSuffix()),
+                MediaType.TEXT_HTML_VALUE);
+    }
+
+    /**
+     * 创建数据源
+     */
+    private DataSource buildDataSource() {
+        // 创建 HikariConfig 配置类
+        HikariConfig hikariConfig = new HikariConfig();
+//        hikariConfig.setDriverClassName("com.mysql.cj.jdbc.Driver");
+        hikariConfig.setJdbcUrl(dataSourceProperties.getUrl());
+        hikariConfig.setUsername(dataSourceProperties.getUsername());
+        hikariConfig.setPassword(dataSourceProperties.getPassword());
+        hikariConfig.addDataSourceProperty("useInformationSchema", "true"); // 设置可以获取 tables remarks 信息
+        // 创建数据源
+        return new HikariDataSource(hikariConfig);
+    }
+
+    /**
+     * 创建 screw 的引擎配置
+     */
+    private static EngineConfig buildEngineConfig() {
+        return EngineConfig.builder()
+                .fileOutputDir(FILE_OUTPUT_DIR) // 生成文件路径
+                .openOutputDir(false) // 打开目录
+                .fileType(FILE_OUTPUT_TYPE) // 文件类型
+                .produceType(EngineTemplateType.freemarker) // 文件类型
+                .fileName(DOC_FILE_NAME) // 自定义文件名称
+                .build();
+    }
+
+    /**
+     * 创建 screw 的处理配置，一般可忽略
+     * 指定生成逻辑、当存在指定表、指定表前缀、指定表后缀时，将生成指定表，其余表不生成、并跳过忽略表配置
+     */
+    private static ProcessConfig buildProcessConfig() {
+        return ProcessConfig.builder()
+                .ignoreTablePrefix(Collections.singletonList("QRTZ_")) // 忽略表前缀
+                .build();
+    }
+
+}

src/main/java/cn/iocoder/dashboard/modules/tool/service/codegen/impl/ToolCodegenEngine.java

@@ -4,7 +4,7 @@ import cn.hutool.core.map.MapUtil;
 import cn.hutool.core.util.StrUtil;
 import cn.hutool.extra.template.TemplateConfig;
 import cn.hutool.extra.template.TemplateEngine;
-import cn.hutool.extra.template.TemplateUtil;
+import cn.hutool.extra.template.engine.velocity.VelocityEngine;
 import cn.iocoder.dashboard.common.exception.util.ServiceExceptionUtil;
 import cn.iocoder.dashboard.common.pojo.CommonResult;
 import cn.iocoder.dashboard.common.pojo.PageParam;
@@ -28,7 +28,10 @@ import org.springframework.stereotype.Component;
 
 import javax.annotation.PostConstruct;
 import javax.annotation.Resource;
-import java.util.*;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
 
 import static cn.hutool.core.map.MapUtil.getStr;
 import static cn.hutool.core.text.CharSequenceUtil.*;
@@ -107,7 +110,7 @@ public class ToolCodegenEngine {
         // 初始化 TemplateEngine 属性
         TemplateConfig config = new TemplateConfig();
         config.setResourceMode(TemplateConfig.ResourceMode.CLASSPATH);
-        this.templateEngine = TemplateUtil.createEngine(config);
+        this.templateEngine = new VelocityEngine(config);
     }
 
     @PostConstruct