添加 测试数据库链接 方法

eladmin-system/src/main/java/me/zhengjie/modules/mnt/rest/DatabaseController.java

@@ -61,4 +61,13 @@ public class DatabaseController {
         databaseService.delete(id);
         return new ResponseEntity(HttpStatus.OK);
     }
+
+	@Log("测试数据库链接")
+	@ApiOperation(value = "测试数据库链接")
+	@PostMapping("/testConnect")
+	@PreAuthorize("@el.check('database:testConnect')")
+	public ResponseEntity testConnect(@Validated @RequestBody Database resources){
+		return new ResponseEntity<>(databaseService.testConnection(resources),HttpStatus.CREATED);
+	}
+
 }

eladmin-system/src/main/java/me/zhengjie/modules/mnt/service/DatabaseService.java

@@ -51,4 +51,11 @@ public interface DatabaseService {
      * @param id /
      */
     void delete(String id);
+
+	/**
+	 * 测试连接数据库
+	 * @param resources
+	 * @return
+	 */
+	boolean testConnection(Database resources);
 }

eladmin-system/src/main/java/me/zhengjie/modules/mnt/service/impl/DatabaseServiceImpl.java

@@ -1,12 +1,14 @@
 package me.zhengjie.modules.mnt.service.impl;
 
 import cn.hutool.core.util.IdUtil;
+import lombok.extern.slf4j.Slf4j;
 import me.zhengjie.modules.mnt.domain.Database;
 import me.zhengjie.modules.mnt.repository.DatabaseRepository;
 import me.zhengjie.modules.mnt.service.DatabaseService;
 import me.zhengjie.modules.mnt.service.dto.DatabaseDto;
 import me.zhengjie.modules.mnt.service.dto.DatabaseQueryCriteria;
 import me.zhengjie.modules.mnt.service.mapper.DatabaseMapper;
+import me.zhengjie.modules.mnt.util.SqlUtils;
 import me.zhengjie.utils.PageUtil;
 import me.zhengjie.utils.QueryHelp;
 import me.zhengjie.utils.ValidationUtil;
@@ -21,6 +23,7 @@ import org.springframework.transaction.annotation.Transactional;
 * @date 2019-08-24
 */
 @Service
+@Slf4j
 @Transactional(propagation = Propagation.SUPPORTS, readOnly = true, rollbackFor = Exception.class)
 public class DatabaseServiceImpl implements DatabaseService {
 
@@ -72,4 +75,15 @@ public class DatabaseServiceImpl implements DatabaseService {
     public void delete(String id) {
         databaseRepository.deleteById(id);
     }
+
+	@Override
+	public boolean testConnection(Database resources) {
+		try {
+			return SqlUtils.testConnection(resources.getJdbcUrl(), resources.getUserName(), resources.getPwd());
+		} catch (Exception e) {
+			log.error(e.getMessage());
+			return false;
+		}
+
+	}
 }

eladmin-system/src/main/java/me/zhengjie/modules/mnt/util/DataTypeEnum.java

@@ -0,0 +1,123 @@
+/*
+ * <<
+ *  Davinci
+ *  ==
+ *  Copyright (C) 2016 - 2019 EDP
+ *  ==
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *   Unless required by applicable law or agreed to in writing, software
+ *   distributed under the License is distributed on an "AS IS" BASIS,
+ *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *   See the License for the specific language governing permissions and
+ *   limitations under the License.
+ *  >>
+ *
+ */
+
+package me.zhengjie.modules.mnt.util;
+
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public enum DataTypeEnum {
+
+    MYSQL("mysql", "mysql", "com.mysql.jdbc.Driver", "`", "`", "'", "'"),
+
+    ORACLE("oracle", "oracle", "oracle.jdbc.driver.OracleDriver", "\"", "\"", "\"", "\""),
+
+    SQLSERVER("sqlserver", "sqlserver", "com.microsoft.sqlserver.jdbc.SQLServerDriver", "\"", "\"", "\"", "\""),
+
+    H2("h2", "h2", "org.h2.Driver", "`", "`", "\"", "\""),
+
+    PHOENIX("phoenix", "hbase phoenix", "org.apache.phoenix.jdbc.PhoenixDriver", "", "", "\"", "\""),
+
+    MONGODB("mongo", "mongodb", "mongodb.jdbc.MongoDriver", "`", "`", "\"", "\""),
+
+    ELASTICSEARCH("sql4es", "elasticsearch", "nl.anchormen.sql4es.jdbc.ESDriver", "", "", "'", "'"),
+
+    PRESTO("presto", "presto", "com.facebook.presto.jdbc.PrestoDriver", "", "", "\"", "\""),
+
+    MOONBOX("moonbox", "moonbox", "moonbox.jdbc.MbDriver", "`", "`", "`", "`"),
+
+    CASSANDRA("cassandra", "cassandra", "com.github.adejanovski.cassandra.jdbc.CassandraDriver", "", "", "'", "'"),
+
+    CLICKHOUSE("clickhouse", "clickhouse", "ru.yandex.clickhouse.ClickHouseDriver", "", "", "\"", "\""),
+
+    KYLIN("kylin", "kylin", "org.apache.kylin.jdbc.Driver", "\"", "\"", "\"", "\""),
+
+    VERTICA("vertica", "vertica", "com.vertica.jdbc.Driver", "", "", "'", "'"),
+
+    HANA("sap", "sap hana", "com.sap.db.jdbc.Driver", "", "", "'", "'"),
+
+    IMPALA("impala", "impala", "com.cloudera.impala.jdbc41.Driver", "", "", "'", "'");
+
+
+    private String feature;
+    private String desc;
+    private String driver;
+    private String keywordPrefix;
+    private String keywordSuffix;
+    private String aliasPrefix;
+    private String aliasSuffix;
+
+    private static final String jdbcUrlPrefix = "jdbc:";
+
+    DataTypeEnum(String feature, String desc, String driver, String keywordPrefix, String keywordSuffix, String aliasPrefix, String aliasSuffix) {
+        this.feature = feature;
+        this.desc = desc;
+        this.driver = driver;
+        this.keywordPrefix = keywordPrefix;
+        this.keywordSuffix = keywordSuffix;
+        this.aliasPrefix = aliasPrefix;
+        this.aliasSuffix = aliasSuffix;
+    }
+
+    public static DataTypeEnum urlOf(String jdbcUrl) {
+        String url = jdbcUrl.toLowerCase().trim();
+        for (DataTypeEnum dataTypeEnum : values()) {
+            if (url.startsWith(jdbcUrlPrefix + dataTypeEnum.feature)) {
+                try {
+                    Class<?> aClass = Class.forName(dataTypeEnum.getDriver());
+                    if (null == aClass) {
+                        throw new RuntimeException("Unable to get driver instance for jdbcUrl: " + jdbcUrl);
+                    }
+                } catch (ClassNotFoundException e) {
+                    throw new RuntimeException("Unable to get driver instance: " + jdbcUrl);
+                }
+                return dataTypeEnum;
+            }
+        }
+        return null;
+    }
+
+    public String getFeature() {
+        return feature;
+    }
+
+    public String getDesc() {
+        return desc;
+    }
+
+    public String getDriver() {
+        return driver;
+    }
+
+    public String getKeywordPrefix() {
+        return keywordPrefix;
+    }
+
+    public String getKeywordSuffix() {
+        return keywordSuffix;
+    }
+
+    public String getAliasPrefix() {
+        return aliasPrefix;
+    }
+
+    public String getAliasSuffix() {
+        return aliasSuffix;
+    }
+}

eladmin-system/src/main/java/me/zhengjie/modules/mnt/util/SqlUtils.java

@@ -0,0 +1,163 @@
+package me.zhengjie.modules.mnt.util;
+
+import cn.hutool.crypto.SecureUtil;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.util.StringUtils;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+import javax.sql.DataSource;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
+@Slf4j
+public class SqlUtils {
+
+	public static final String COLON = ":";
+
+	private static volatile Map<String, DruidDataSource> map = new HashMap<>();
+
+	private static String getKey(String jdbcUrl, String username, String password) {
+		StringBuilder sb = new StringBuilder();
+		if (!StringUtils.isEmpty(username)) {
+			sb.append(username);
+		}
+		if (!StringUtils.isEmpty(password)) {
+			sb.append(COLON).append(password);
+		}
+		sb.append(COLON).append(jdbcUrl.trim());
+
+		return SecureUtil.md5(sb.toString());
+	}
+
+	/**
+	 * 获取数据源
+	 *
+	 * @param jdbcUrl
+	 * @param userName
+	 * @param password
+	 * @return
+	 */
+	private static DataSource getDataSource(String jdbcUrl, String userName, String password) {
+		String key = getKey(jdbcUrl, userName, password);
+		if (!map.containsKey(key) || null == map.get(key)) {
+			DruidDataSource druidDataSource = new DruidDataSource();
+
+			String className = null;
+			try {
+				className = DriverManager.getDriver(jdbcUrl.trim()).getClass().getName();
+			} catch (SQLException e) {
+				throw new RuntimeException("Get class name error: =" + jdbcUrl);
+			}
+			if (StringUtils.isEmpty(className)) {
+				DataTypeEnum dataTypeEnum = DataTypeEnum.urlOf(jdbcUrl);
+				if (null == dataTypeEnum ) {
+					throw new RuntimeException("Not supported data type: jdbcUrl=" + jdbcUrl);
+				}
+				druidDataSource.setDriverClassName(dataTypeEnum.getDriver());
+			} else {
+				druidDataSource.setDriverClassName(className);
+			}
+
+
+			druidDataSource.setUrl(jdbcUrl);
+			druidDataSource.setUsername(userName);
+			druidDataSource.setPassword(password);
+			// 配置获取连接等待超时的时间
+			druidDataSource.setMaxWait(3000);
+			// 配置初始化大小、最小、最大
+			druidDataSource.setInitialSize(1);
+			druidDataSource.setMinIdle(1);
+			druidDataSource.setMaxActive(1);
+
+			// 配置间隔多久才进行一次检测需要关闭的空闲连接，单位是毫秒
+			druidDataSource.setTimeBetweenEvictionRunsMillis(50000);
+			// 配置一旦重试多次失败后等待多久再继续重试连接，单位是毫秒
+			druidDataSource.setTimeBetweenConnectErrorMillis(18000);
+			// 配置一个连接在池中最小生存的时间，单位是毫秒
+			druidDataSource.setMinEvictableIdleTimeMillis(300000);
+			// 这个特性能解决 MySQL 服务器8小时关闭连接的问题
+			druidDataSource.setMaxEvictableIdleTimeMillis(25200000);
+
+			try {
+				druidDataSource.init();
+			} catch (SQLException e) {
+				log.error("Exception during pool initialization", e);
+				throw new RuntimeException(e.getMessage());
+			}
+			map.put(key, druidDataSource);
+		}
+		return map.get(key);
+	}
+
+	private static Connection getConnection(String jdbcUrl, String userName, String password) {
+		DataSource dataSource = getDataSource(jdbcUrl, userName, password);
+		Connection connection = null;
+		try {
+			connection = dataSource.getConnection();
+		} catch (Exception e) {
+			connection = null;
+		}
+		try {
+			if (null == connection || connection.isClosed() || !connection.isValid(5)) {
+				log.info("connection is closed or invalid, retry get connection!");
+				connection = dataSource.getConnection();
+			}
+		} catch (Exception e) {
+			log.error("create connection error, jdbcUrl: {}", jdbcUrl);
+			throw new RuntimeException("create connection error, jdbcUrl: " + jdbcUrl);
+		}
+		return connection;
+	}
+
+	private static void releaseConnection(Connection connection) {
+		if (null != connection) {
+			try {
+				connection.close();
+				connection = null;
+			} catch (Exception e) {
+				e.printStackTrace();
+				log.error("connection close error", e.getMessage());
+			}
+		}
+	}
+
+
+	public static void closeResult(ResultSet rs) {
+		if (rs != null) {
+			try {
+				rs.close();
+				rs = null;
+			} catch (Exception e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	public static boolean testConnection(String jdbcUrl, String userName, String password) {
+		Connection connection = null;
+		try {
+			connection = getConnection(jdbcUrl,  userName,  password);
+			if (null != connection) {
+				return true;
+			}
+		}catch (Exception e){
+			log.info("Get connection failed:",e.getMessage());
+		}finally {
+			releaseConnection(connection);
+		}
+		return false;
+	}
+
+	public JdbcTemplate jdbcTemplate(String jdbcUrl, String userName, String password) {
+		DataSource dataSource = getDataSource(jdbcUrl,  userName,  password);
+		JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
+		jdbcTemplate.setFetchSize(1000);
+		return jdbcTemplate;
+	}
+
+}

sql/eladmin.sql

@@ -368,6 +368,8 @@ CREATE TABLE `mnt_database`  (
   PRIMARY KEY (`id`) USING BTREE
 ) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Compact;
 
+INSERT INTO `mnt_database` VALUES ('604dd98ae8b44b128544c2135628f87d', '本机', 'jdbc:log4jdbc:mysql://localhost:3306/eladmin?serverTimezone=UTC', 'root', '123456');
+
 -- ----------------------------
 -- Table structure for mnt_deploy
 -- ----------------------------