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sqlserver9以上版本兼容 #343

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39 changes: 36 additions & 3 deletions src/main/java/com/zzg/mybatis/generator/util/DbUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -140,23 +140,56 @@ public static Connection getConnection(DatabaseConfig config) throws ClassNotFou
return connection;
}

public static List<String> getTableNames(DatabaseConfig config, String filter) throws Exception {
public static boolean isOldVersion(Connection connection) throws SQLException {
try (Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery("SELECT @@VERSION")) {

if (rs.next()) {
String versionString = rs.getString(1);
// 提取版本号
int majorVersion = extractMajorVersion(versionString);

// 假设我们将SQL Server 2005（版本9）及以下视为"旧版本"
return majorVersion <= 9;
}
}
return false; // 如果无法获取版本信息，默认不是旧版本
}

private static int extractMajorVersion(String versionString) {
// 版本字符串通常以 "Microsoft SQL Server XXXX" 开头
String[] parts = versionString.split(" ");
for (String part : parts) {
if (part.matches("\\d+\\.\\d+\\.\\d+\\.\\d+")) {
return Integer.parseInt(part.split("\\.")[0]);
}
}
return 0; // 无法解析版本号
}

public static List<String> getTableNames(DatabaseConfig config, String filter) throws Exception {
Session sshSession = getSSHSession(config);
engagePortForwarding(sshSession, config);
try (Connection connection = getConnection(config)) {
List<String> tables = new ArrayList<>();
DatabaseMetaData md = connection.getMetaData();
ResultSet rs;
String sql;
if (DbType.valueOf(config.getDbType()) == DbType.SQL_Server) {
String sql = "select name from sysobjects where xtype='u' or xtype='v' order by name";
boolean oldVersion = isOldVersion(connection);
if (oldVersion){
sql = "select name from sysobjects where xtype='u' or xtype='v' order by name";
}else {
sql = "SELECT name　FROM sys.tables order by name";
}
rs = connection.createStatement().executeQuery(sql);
while (rs.next()) {
tables.add(rs.getString("name"));
}
} else if (DbType.valueOf(config.getDbType()) == DbType.Oracle) {
rs = md.getTables(null, config.getUsername().toUpperCase(), null, new String[]{"TABLE", "VIEW"});
} else if (DbType.valueOf(config.getDbType()) == DbType.Sqlite) {
String sql = "Select name from sqlite_master;";
sql = "Select name from sqlite_master;";
rs = connection.createStatement().executeQuery(sql);
while (rs.next()) {
tables.add(rs.getString("name"));
Expand Down