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db-data-export

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zgq
2024-03-28 13:13:09 +08:00
parent fc9ce84773
commit f425604b15
27 changed files with 520 additions and 20 deletions
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31
chat2db-server/chat2db-plugins/chat2db-h2/src/main/java/ai/chat2db/plugin/h2/H2DBManage.java
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@ -10,9 +10,18 @@ import org.apache.commons.lang3.StringUtils;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.Objects;
public class H2DBManage extends DefaultDBManage implements DBManage {
@Override
public String exportDatabaseData(Connection connection, String databaseName, String schemaName, String tableName) throws SQLException {
StringBuilder sqlBuilder = new StringBuilder();
exportTableData(connection, tableName, sqlBuilder);
return sqlBuilder.toString();
}
@Override
public String exportDatabase(Connection connection, String databaseName, String schemaName, boolean containData) throws SQLException {
StringBuilder sqlBuilder = new StringBuilder();
@ -36,6 +45,28 @@ public class H2DBManage extends DefaultDBManage implements DBManage {
}
}
private void exportTableData(Connection connection, String tableName, StringBuilder sqlBuilder) throws SQLException {
String sql = String.format("select * from %s", tableName);
try (ResultSet resultSet = connection.createStatement().executeQuery(sql)) {
ResultSetMetaData metaData = resultSet.getMetaData();
while (resultSet.next()) {
sqlBuilder.append("INSERT INTO ").append(tableName).append(" VALUES (");
for (int i = 1; i <= metaData.getColumnCount(); i++) {
String value = resultSet.getString(i);
if (Objects.isNull(value)) {
sqlBuilder.append("NULL");
} else {
sqlBuilder.append("'").append(value).append("'");
}
if (i < metaData.getColumnCount()) {
sqlBuilder.append(", ");
}
}
sqlBuilder.append(");\n");
}
sqlBuilder.append("\n");
}
}
@Override
public void connectDatabase(Connection connection, String database) {