Mybatis-plus团队新作：Mybatis-mate 轻松搞定数据权限

<dependency>  <groupId>com.baomidou</groupId>  <artifactId>mybatis-mate-starter</artifactId>  <version>1.0.8</version></dependency>

<dependency>  <groupId>com.baomidou</groupId>  <artifactId>mybatis-mate-annotation</artifactId>  <version>1.0.8</version></dependency>

@FieldDict(type = "user_sex", target = "sexText")private Integer sex;
private String sexText;

@Componentpublic class DataDict implements IDataDict {
    /**     * 从数据库或缓存中获取     */    private Map<String, String> SEX_MAP = new ConcurrentHashMap<String, String>() {{        put("0", "女");        put("1", "男");    }};
    @Override    public String getNameByCode(FieldDict fieldDict, String code) {        System.err.println("字段类型：" + fieldDict.type() + "，编码：" + code);        return SEX_MAP.get(code);    }}

@FieldEncrypt(algorithm = Algorithm.PBEWithMD5AndDES)private String password;

@FieldSensitive(type = "testStrategy")private String username;
@FieldSensitive(type = SensitiveType.mobile)private String mobile;

@Configurationpublic class SensitiveStrategyConfig {
    /**     * 注入脱敏策略     */    @Bean    public ISensitiveStrategy sensitiveStrategy() {        // 自定义 testStrategy 类型脱敏处理        return new SensitiveStrategy().addStrategy("testStrategy", t -> t + "***test***");    }}

/** * 演示文章敏感词过滤 */@RestControllerpublic class ArticleController {    @Autowired    private SensitiveWordsMapper sensitiveWordsMapper;
    // 测试访问下面地址观察请求地址、界面返回数据及控制台（ 普通参数 ）    // 无敏感词 http://localhost:8080/info?content=tom&see=1&age=18    // 英文敏感词 http://localhost:8080/info?content=my%20content%20is%20tomcat&see=1&age=18    // 汉字敏感词 http://localhost:8080/info?content=%E7%8E%8B%E5%AE%89%E7%9F%B3%E5%94%90%E5%AE%8B%E5%85%AB%E5%A4%A7%E5%AE%B6&see=1    // 多个敏感词 http://localhost:8080/info?content=%E7%8E%8B%E5%AE%89%E7%9F%B3%E6%9C%89%E4%B8%80%E5%8F%AA%E7%8C%ABtomcat%E6%B1%A4%E5%A7%86%E5%87%AF%E7%89%B9&see=1&size=6    // 插入一个字变成非敏感词 http://localhost:8080/info?content=%E7%8E%8B%E7%8C%AB%E5%AE%89%E7%9F%B3%E6%9C%89%E4%B8%80%E5%8F%AA%E7%8C%ABtomcat%E6%B1%A4%E5%A7%86%E5%87%AF%E7%89%B9&see=1&size=6    @GetMapping("/info")    public String info(Article article) throws Exception {        return ParamsConfig.toJson(article);    }

    // 添加一个敏感词然后再去观察是否生效 http://localhost:8080/add    // 观察【猫】这个词被过滤了 http://localhost:8080/info?content=%E7%8E%8B%E5%AE%89%E7%9F%B3%E6%9C%89%E4%B8%80%E5%8F%AA%E7%8C%ABtomcat%E6%B1%A4%E5%A7%86%E5%87%AF%E7%89%B9&see=1&size=6    // 嵌套敏感词处理 http://localhost:8080/info?content=%E7%8E%8B%E7%8C%AB%E5%AE%89%E7%9F%B3%E6%9C%89%E4%B8%80%E5%8F%AA%E7%8C%ABtomcat%E6%B1%A4%E5%A7%86%E5%87%AF%E7%89%B9&see=1&size=6    // 多层嵌套敏感词 http://localhost:8080/info?content=%E7%8E%8B%E7%8E%8B%E7%8C%AB%E5%AE%89%E7%9F%B3%E5%AE%89%E7%9F%B3%E6%9C%89%E4%B8%80%E5%8F%AA%E7%8C%ABtomcat%E6%B1%A4%E5%A7%86%E5%87%AF%E7%89%B9&see=1&size=6    @GetMapping("/add")    public String add() throws Exception {        Long id = 3L;        if (null == sensitiveWordsMapper.selectById(id)) {            System.err.println("插入一个敏感词：" + sensitiveWordsMapper.insert(new SensitiveWords(id, "猫")));            // 插入一个敏感词，刷新算法引擎敏感词            SensitiveWordsProcessor.reloadSensitiveWords();        }        return "ok";    }
    // 测试访问下面地址观察控制台（ 请求json参数 ）    // idea 执行 resources 目录 TestJson.http 文件测试    @PostMapping("/json")    public String json(@RequestBody Article article) throws Exception {        return ParamsConfig.toJson(article);    }}

PostgreSQL。@Componentpublic class PostgresDdl implements IDdl {
    /**     * 执行 SQL 脚本方式     */    @Override    public List<String> getSqlFiles() {        return Arrays.asList(                // 内置包方式                "db/tag-schema.sql",                // 文件绝对路径方式                "D:\\db\\tag-data.sql"        );    }}

ddlScript.run(new StringReader("DELETE FROM user;\n" +                "INSERT INTO user (id, username, password, sex, email) VALUES\n" +                "(20, 'Duo', '123456', 0, 'Duo@baomidou.com');"));

@Componentpublic class MysqlDdl implements IDdl {
    @Override    public void sharding(Consumer<IDdl> consumer) {        // 多数据源指定，主库初始化从库自动同步        String group = "mysql";        ShardingGroupProperty sgp = ShardingKey.getDbGroupProperty(group);        if (null != sgp) {            // 主库            sgp.getMasterKeys().forEach(key -> {                ShardingKey.change(group + key);                consumer.accept(this);            });            // 从库            sgp.getSlaveKeys().forEach(key -> {                ShardingKey.change(group + key);                consumer.accept(this);            });        }    }
    /**     * 执行 SQL 脚本方式     */    @Override    public List<String> getSqlFiles() {        return Arrays.asList("db/user-mysql.sql");    }}

@Mapper@Sharding("mysql")public interface UserMapper extends BaseMapper<User> {
    @Sharding("postgres")    Long selectByUsername(String username);}

@Componentpublic class MyShardingStrategy extends RandomShardingStrategy {
    /**     * 决定切换数据源 key {@link ShardingDatasource}     *     * @param group          动态数据库组     * @param invocation     {@link Invocation}     * @param sqlCommandType {@link SqlCommandType}     */    @Override    public void determineDatasourceKey(String group, Invocation invocation, SqlCommandType sqlCommandType) {        // 数据源组 group 自定义选择即可， keys 为数据源组内主从多节点，可随机选择或者自己控制        this.changeDatabaseKey(group, sqlCommandType, keys -> chooseKey(keys, invocation));    }}

mybatis-mate:  sharding:    health: true # 健康检测    primary: mysql # 默认选择数据源    datasource:      mysql: # 数据库组        - key: node1          ...        - key: node2          cluster: slave # 从库读写分离时候负责 sql 查询操作，主库 master 默认可以不写          ...      postgres:        - key: node1 # 数据节点          ...

/** * <p> * 性能分析拦截器，用于输出每条 SQL 语句及其执行时间 * </p> */@Slf4j@Component@Intercepts({@Signature(type = StatementHandler.class, method = "query", args = {Statement.class, ResultHandler.class}),        @Signature(type = StatementHandler.class, method = "update", args = {Statement.class}),        @Signature(type = StatementHandler.class, method = "batch", args = {Statement.class})})public class PerformanceInterceptor implements Interceptor {    /**     * SQL 执行最大时长，超过自动停止运行，有助于发现问题。     */    private long maxTime = 0;    /**     * SQL 是否格式化     */    private boolean format = false;    /**     * 是否写入日志文件<br>     * true 写入日志文件，不阻断程序执行！<br>     * 超过设定的最大执行时长异常提示！     */    private boolean writeInLog = false;
    @Override    public Object intercept(Invocation invocation) throws Throwable {        Statement statement;        Object firstArg = invocation.getArgs()[0];        if (Proxy.isProxyClass(firstArg.getClass())) {            statement = (Statement) SystemMetaObject.forObject(firstArg).getValue("h.statement");        } else {            statement = (Statement) firstArg;        }        MetaObject stmtMetaObj = SystemMetaObject.forObject(statement);        try {            statement = (Statement) stmtMetaObj.getValue("stmt.statement");        } catch (Exception e) {            // do nothing        }        if (stmtMetaObj.hasGetter("delegate")) {//Hikari            try {                statement = (Statement) stmtMetaObj.getValue("delegate");            } catch (Exception e) {
            }        }
        String originalSql = null;        if (originalSql == null) {            originalSql = statement.toString();        }        originalSql = originalSql.replaceAll("[\\s]+", " ");        int index = indexOfSqlStart(originalSql);        if (index > 0) {            originalSql = originalSql.substring(index);        }
        // 计算执行 SQL 耗时        long start = SystemClock.now();        Object result = invocation.proceed();        long timing = SystemClock.now() - start;
        // 格式化 SQL 打印执行结果        Object target = PluginUtils.realTarget(invocation.getTarget());        MetaObject metaObject = SystemMetaObject.forObject(target);        MappedStatement ms = (MappedStatement) metaObject.getValue("delegate.mappedStatement");        StringBuilder formatSql = new StringBuilder();        formatSql.append(" Time：").append(timing);        formatSql.append(" ms - ID：").append(ms.getId());        formatSql.append("\n Execute SQL：").append(sqlFormat(originalSql, format)).append("\n");        if (this.isWriteInLog()) {            if (this.getMaxTime() >= 1 && timing > this.getMaxTime()) {                log.error(formatSql.toString());            } else {                log.debug(formatSql.toString());            }        } else {            System.err.println(formatSql);            if (this.getMaxTime() >= 1 && timing > this.getMaxTime()) {                throw new RuntimeException(" The SQL execution time is too large, please optimize ! ");            }        }        return result;    }
    @Override    public Object plugin(Object target) {        if (target instanceof StatementHandler) {            return Plugin.wrap(target, this);        }        return target;    }
    @Override    public void setProperties(Properties prop) {        String maxTime = prop.getProperty("maxTime");        String format = prop.getProperty("format");        if (StringUtils.isNotEmpty(maxTime)) {            this.maxTime = Long.parseLong(maxTime);        }        if (StringUtils.isNotEmpty(format)) {            this.format = Boolean.valueOf(format);        }    }
    public long getMaxTime() {        return maxTime;    }
    public PerformanceInterceptor setMaxTime(long maxTime) {        this.maxTime = maxTime;        return this;    }
    public boolean isFormat() {        return format;    }
    public PerformanceInterceptor setFormat(boolean format) {        this.format = format;        return this;    }
    public boolean isWriteInLog() {        return writeInLog;    }
    public PerformanceInterceptor setWriteInLog(boolean writeInLog) {        this.writeInLog = writeInLog;        return this;    }
    public Method getMethodRegular(Class<?> clazz, String methodName) {        if (Object.class.equals(clazz)) {            return null;        }        for (Method method : clazz.getDeclaredMethods()) {            if (method.getName().equals(methodName)) {                return method;            }        }        return getMethodRegular(clazz.getSuperclass(), methodName);    }
    /**     * 获取sql语句开头部分     *     * @param sql     * @return     */    private int indexOfSqlStart(String sql) {        String upperCaseSql = sql.toUpperCase();        Set<Integer> set = new HashSet<>();        set.add(upperCaseSql.indexOf("SELECT "));        set.add(upperCaseSql.indexOf("UPDATE "));        set.add(upperCaseSql.indexOf("INSERT "));        set.add(upperCaseSql.indexOf("DELETE "));        set.remove(-1);        if (CollectionUtils.isEmpty(set)) {            return -1;        }        List<Integer> list = new ArrayList<>(set);        Collections.sort(list, Integer::compareTo);        return list.get(0);    }
    private final static SqlFormatter sqlFormatter = new SqlFormatter();
    /**     * 格式sql     *     * @param boundSql     * @param format     * @return     */    public static String sqlFormat(String boundSql, boolean format) {        if (format) {            try {                return sqlFormatter.format(boundSql);            } catch (Exception ignored) {            }        }        return boundSql;    }}

@RestController@AllArgsConstructorpublic class TestController {    private BuyService buyService;
    // 数据库 test 表 t_order 在事务一致情况无法插入数据，能够插入说明多数据源事务无效    // 测试访问 http://localhost:8080/test    // 制造事务回滚 http://localhost:8080/test?error=true 也可通过修改表结构制造错误    // 注释 ShardingConfig 注入 dataSourceProvider 可测试事务无效情况    @GetMapping("/test")    public String test(Boolean error) {        return buyService.buy(null != error && error);    }}

// 测试 test 类型数据权限范围，混合分页模式@DataScope(type = "test", value = {        // 关联表 user 别名 u 指定部门字段权限        @DataColumn(alias = "u", name = "department_id"),        // 关联表 user 别名 u 指定手机号字段（自己判断处理）        @DataColumn(alias = "u", name = "mobile")})@Select("select u.* from user u")List<User> selectTestList(IPage<User> page, Long id, @Param("name") String username);

@Beanpublic IDataScopeProvider dataScopeProvider() {    return new AbstractDataScopeProvider() {        @Override        protected void setWhere(PlainSelect plainSelect, Object[] args, DataScopeProperty dataScopeProperty) {            // args 中包含 mapper 方法的请求参数，需要使用可以自行获取            /*                // 测试数据权限，最终执行 SQL 语句                SELECT u.* FROM user u WHERE (u.department_id IN ('1', '2', '3', '5'))                AND u.mobile LIKE '%1533%'             */            if ("test".equals(dataScopeProperty.getType())) {                // 业务 test 类型                List<DataColumnProperty> dataColumns = dataScopeProperty.getColumns();                for (DataColumnProperty dataColumn : dataColumns) {                    if ("department_id".equals(dataColumn.getName())) {                        // 追加部门字段 IN 条件，也可以是 SQL 语句                        Set<String> deptIds = new HashSet<>();                        deptIds.add("1");                        deptIds.add("2");                        deptIds.add("3");                        deptIds.add("5");                        ItemsList itemsList = new ExpressionList(deptIds.stream().map(StringValue::new).collect(Collectors.toList()));                        InExpression inExpression = new InExpression(new Column(dataColumn.getAliasDotName()), itemsList);                        if (null == plainSelect.getWhere()) {                            // 不存在 where 条件                            plainSelect.setWhere(new Parenthesis(inExpression));                        } else {                            // 存在 where 条件 and 处理                            plainSelect.setWhere(new AndExpression(plainSelect.getWhere(), inExpression));                        }                    } else if ("mobile".equals(dataColumn.getName())) {                        // 支持一个自定义条件                        LikeExpression likeExpression = new LikeExpression();                        likeExpression.setLeftExpression(new Column(dataColumn.getAliasDotName()));                        likeExpression.setRightExpression(new StringValue("%1533%"));                        plainSelect.setWhere(new AndExpression(plainSelect.getWhere(), likeExpression));                    }                }            }        }    };}

SELECT u.* FROM user u   WHERE (u.department_id IN ('1', '2', '3', '5'))   AND u.mobile LIKE '%1533%' LIMIT 1, 10