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+package com.zheng.common.util;
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+
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+import org.apache.commons.lang.ObjectUtils;
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+import org.apache.velocity.VelocityContext;
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+import org.mybatis.generator.api.MyBatisGenerator;
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+import org.mybatis.generator.config.Configuration;
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+import org.mybatis.generator.config.xml.ConfigurationParser;
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+import org.mybatis.generator.internal.DefaultShellCallback;
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+
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+import java.io.File;
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+import java.util.ArrayList;
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+import java.util.HashMap;
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+import java.util.List;
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+import java.util.Map;
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+
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+/**
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+ * 代码生成类
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+ * Created by ZhangShuzheng on 2017/1/10.
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+ */
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+public class MybatisGeneratorUtil {
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+
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+ // 模板路径
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+ private static String VM_PATH = "zheng-common/src/main/resources/generatorConfig.vm";
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+ // 项目名称
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+ private static String PROJECT_NAME = "zheng";
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+ // 数据库名称
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+ private static String DATABASE_NAME = "zheng";
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+
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+ /**
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+ * 根据模板生成generatorConfig.xml文件
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+ * @param module_prefix_name
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+ */
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+ public static void generator(
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+ String jdbc_driver,
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+ String jdbc_url,
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+ String jdbc_username,
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+ String jdbc_password,
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+ String module_prefix_name) {
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+ String module_path = PROJECT_NAME + "-" + module_prefix_name.replaceAll("\\.", "-") + "/" + PROJECT_NAME + "-" + module_prefix_name.replaceAll("\\.", "-") + "-dao/src/main/resources/generatorConfig.xml";
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+ String sql = "SELECT table_name FROM INFORMATION_SCHEMA.TABLES WHERE table_schema = '" + DATABASE_NAME + "' AND table_name LIKE '" + module_prefix_name.replaceAll("\\.", "_") + "_%';";
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+ System.out.println("========== 开始生成generatorConfig.xml文件 ==========");
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+ try {
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+ VelocityContext context= new VelocityContext();
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+ List<Map<String, Object>> tables = new ArrayList<>();
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+ Map<String, Object> table = null;
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+
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+ // 查询定制前缀项目的所有表
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+ JdbcUtil jdbcUtil = new JdbcUtil(jdbc_driver, jdbc_url, jdbc_username, jdbc_password);
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+ List<Map> result = jdbcUtil.selectByParams(sql, null);
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+ for (Map map : result) {
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+ System.out.println(map.get("TABLE_NAME"));
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+ table = new HashMap<>();
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+ table.put("table_name", map.get("TABLE_NAME"));
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+ table.put("model_name", StringUtil.lineToHump(ObjectUtils.toString(map.get("TABLE_NAME"))));
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+ tables.add(table);
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+ }
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+ jdbcUtil.release();
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+
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+ String targetProject = PROJECT_NAME + "-" + module_prefix_name.replaceAll("\\.", "-") + "/" + PROJECT_NAME + "-" + module_prefix_name.replaceAll("\\.", "-") + "-dao";
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+ context.put("tables", tables);
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+ context.put("generator_javaModelGenerator_targetPackage", "com." + PROJECT_NAME + "." + module_prefix_name + ".dao.model");
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+ context.put("generator_sqlMapGenerator_targetPackage", "com." + PROJECT_NAME + "." + module_prefix_name + ".dao.mapper");
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+ context.put("generator_javaClientGenerator_targetPackage", "com." + PROJECT_NAME + "." + module_prefix_name + ".dao.mapper");
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+ context.put("targetProject", targetProject);
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+ VelocityUtil.generate(VM_PATH, module_path, context);
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+ // 删除旧代码
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+ deleteDir(new File(targetProject + "/src/main/java/com/" + PROJECT_NAME + "/" + module_prefix_name.replaceAll("\\.", "/") + "/dao/model"));
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+ deleteDir(new File(targetProject + "/src/main/java/com/" + PROJECT_NAME + "/" + module_prefix_name.replaceAll("\\.", "/") + "/dao/mapper"));
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ System.out.println("========== 结束生成generatorConfig.xml文件 ==========");
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+ System.out.println("========== 开始运行MybatisGenerator ==========");
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+ // 生成代码
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+ try {
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+ List<String> warnings = new ArrayList<>();
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+ File configFile = new File(MybatisGeneratorUtil.class.getResource("/generatorConfig.xml").getFile());
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+ ConfigurationParser cp = new ConfigurationParser(warnings);
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+ Configuration config = cp.parseConfiguration(configFile);
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+ DefaultShellCallback callback = new DefaultShellCallback(true);
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+ MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
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+ myBatisGenerator.generate(null);
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+ for (String warning : warnings) {
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+ System.out.println(warning);
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+ }
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+ } catch (Exception e) {
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+ e.printStackTrace();
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+ }
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+ System.out.println("========== 结束运行MybatisGenerator ==========");
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+ }
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+
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+ // 递归删除非空文件夹
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+ public static void deleteDir(File dir) {
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+ if (dir.isDirectory()) {
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+ File[] files = dir.listFiles();
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+ for (int i = 0; i < files.length; i ++) {
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+ deleteDir(files[i]);
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+ }
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+ }
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+ dir.delete();
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+ }
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+
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+}
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shuzheng