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代码优化与错误拼写修正

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inrgihc
2021-06-01 23:35:00 +08:00
parent 425183fe73
commit 044f97d5c3
113 changed files with 2338 additions and 2340 deletions
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2
dbswitch-common/src/main/java/com/gitee/dbswitch/common/constant/DatabaseTypeEnum.java
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@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style license
//
// Author: tang (inrgihc@126.com)
// Data : 2020/1/2
// Date : 2020/1/2
// Location: beijing , china
/////////////////////////////////////////////////////////////
package com.gitee.dbswitch.common.constant;

108
dbswitch-common/src/main/java/com/gitee/dbswitch/common/util/CommonUtils.java
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@@ -4,7 +4,7 @@
// Use of this source code is governed by a BSD-style license
//
// Author: tang (inrgihc@126.com)
// Data : 2020/1/2
// Date : 2020/1/2
// Location: beijing , china
/////////////////////////////////////////////////////////////
package com.gitee.dbswitch.common.util;
@@ -14,63 +14,71 @@ import com.gitee.dbswitch.common.constant.DatabaseTypeEnum;
/**
* 普通工具类
*
* @author tang
*
* @author tang
*/
public final class CommonUtils {
private CommonUtils() {
private CommonUtils() {
}
}
/**
* 根据数据库类型获取表的全名：schema.table
*
* @param dbType 数据库类型
* @param schema schema名
* @param table table名
* @return 表的全名字符串
*/
public static String getTableFullNameByDatabase(DatabaseTypeEnum dbType, String schema, String table) {
if (dbType == DatabaseTypeEnum.MYSQL || dbType == DatabaseTypeEnum.MARIADB) {
return String.format("`%s`.`%s`", schema, table);
} else if (dbType == DatabaseTypeEnum.SQLSERVER || dbType == DatabaseTypeEnum.SQLSERVER2000) {
return String.format("[%s].[%s]", schema, table);
} else {
return String.format("\"%s\".\"%s\"", schema, table);
}
}
public static String getTableFullNameByDatabase(DatabaseTypeEnum dbtype, String schemaName, String tableName) {
if (dbtype == DatabaseTypeEnum.MYSQL) {
return String.format("`%s`.`%s`", schemaName, tableName);
} else if (dbtype == DatabaseTypeEnum.SQLSERVER) {
return String.format("[%s].[%s]", schemaName, tableName);
} else {
return String.format("\"%s\".\"%s\"", schemaName, tableName);
}
}
/**
* 拼接SELECT查询指定字段的SQL语句
*
* @param dbType 数据库类型
* @param schema schema名
* @param table table名
* @param columns 列名列表
* @return SQL语句字符串
*/
public static String getSelectColumnsSQL(DatabaseTypeEnum dbType, String schema, String table, List<String> columns) {
StringBuilder sb = new StringBuilder();
sb.append(" SELECT ");
for (int i = 0; i < columns.size(); ++i) {
String field = columns.get(i);
String quoteField = quoteString(dbType, field);
sb.append(quoteField);
public static String getSelectColumnsSQL(DatabaseTypeEnum dbtype, String schema, String table, List<String> columns) {
StringBuilder sb = new StringBuilder();
sb.append(" SELECT ");
for (int i = 0; i < columns.size(); ++i) {
String field = columns.get(i);
String quoteField = quoteString(dbtype, field);
sb.append(quoteField);
if (i < columns.size() - 1) {
sb.append(",");
}
}
sb.append(" FROM ");
if (null != schema && !schema.isEmpty()) {
sb.append(quoteString(dbType, schema));
sb.append(".");
}
sb.append(quoteString(dbType, table));
if (i < columns.size() - 1) {
sb.append(",");
}
}
sb.append(" FROM ");
if (null != schema && !schema.isEmpty()) {
sb.append(quoteString(dbtype, schema));
sb.append(".");
}
sb.append(quoteString(dbtype, table));
return sb.toString();
}
return sb.toString();
}
private static String quoteString(DatabaseTypeEnum dbType, String keyName) {
if (dbType == DatabaseTypeEnum.MYSQL || dbType == DatabaseTypeEnum.MARIADB) {
return String.format("`%s`", keyName);
} else if (dbType == DatabaseTypeEnum.SQLSERVER || dbType == DatabaseTypeEnum.SQLSERVER2000) {
return String.format("[%s]", keyName);
} else {
return String.format("\"%s\"", keyName);
}
}
private static String quoteString(DatabaseTypeEnum dbtype, String keyName) {
if (dbtype == DatabaseTypeEnum.MYSQL) {
return String.format("`%s`", keyName);
} else if (dbtype == DatabaseTypeEnum.SQLSERVER) {
return String.format("[%s]", keyName);
} else {
return String.format("\"%s\"", keyName);
}
}
public static String getQuotationChar(DatabaseTypeEnum dbtype) {
if (dbtype == DatabaseTypeEnum.MYSQL) {
return "`";
} else {
return "\"";
}
}
}