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Suyue
2024-02-29 23:13:19 +08:00
parent 064d15bd5a 181b7ff69c
commit c1e5a769e8
12 changed files with 210 additions and 20 deletions
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112
chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/MysqlDBManage.java
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@ -6,10 +6,118 @@ import ai.chat2db.spi.model.Procedure;
import ai.chat2db.spi.sql.SQLExecutor;
import org.springframework.util.StringUtils;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.*;
public class MysqlDBManage extends DefaultDBManage implements DBManage {
@Override
public String exportDatabase(Connection connection, String databaseName, String schemaName, boolean containData) throws SQLException {
StringBuilder sqlBuilder = new StringBuilder();
exportTables(connection, sqlBuilder, containData);
exportViews(connection, sqlBuilder);
exportProcedures(connection, sqlBuilder);
exportTriggers(connection, sqlBuilder);
return sqlBuilder.toString();
}
private void exportTables(Connection connection,StringBuilder sqlBuilder, boolean containData) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet tables = statement.executeQuery("SHOW FULL TABLES WHERE Table_type = 'BASE TABLE'")) {
while (tables.next()) {
String tableName = tables.getString(1);
exportTable(connection, tableName, sqlBuilder, containData);
}
}
}
private void exportTable(Connection connection, String tableName, StringBuilder sqlBuilder, boolean containData) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("show create table " + tableName)) {
if (resultSet.next()) {
String createTableSql = "DROP TABLE IF EXISTS `" + tableName + "`;\n" +
resultSet.getString(2) + ";\n";
sqlBuilder.append(createTableSql).append("\n");
if (containData) {
exportTableData(connection, tableName, sqlBuilder);
}
}
}
}
private void exportTableData(Connection connection, String tableName, StringBuilder sqlBuilder) throws SQLException {
StringBuilder insertSql = new StringBuilder();
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("select * from " + tableName)) {
ResultSetMetaData metaData = resultSet.getMetaData();
while (resultSet.next()) {
insertSql.append("INSERT INTO ").append(tableName).append(" VALUES (");
for (int i = 1; i <= metaData.getColumnCount(); i++) {
insertSql.append("'").append(resultSet.getString(i)).append("'");
if (i < metaData.getColumnCount()) {
insertSql.append(", ");
}
}
insertSql.append(");\n");
}
insertSql.append("\n");
}
sqlBuilder.append(insertSql);
}
private void exportViews(Connection connection, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW FULL TABLES WHERE Table_type = 'VIEW'")) {
while (resultSet.next()) {
String viewName = resultSet.getString(1);
exportView(connection, viewName, sqlBuilder);
}
}
}
private void exportView(Connection connection, String viewName, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW CREATE VIEW " + viewName)) {
if (resultSet.next()) {
String createViewSql = "DROP VIEW IF EXISTS `" + viewName + "`;\n" + resultSet.getString("Create View") + ";\n";
sqlBuilder.append(createViewSql).append("\n");
}
}
}
private void exportProcedures(Connection connection, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW PROCEDURE STATUS WHERE Db = DATABASE()")) {
while (resultSet.next()) {
String procedureName = resultSet.getString("Name");
exportProcedure(connection, procedureName, sqlBuilder);
}
}
}
private void exportProcedure(Connection connection, String procedureName, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW CREATE PROCEDURE " + procedureName)) {
if (resultSet.next()) {
String createProcedureSql = "DROP PROCEDURE IF EXISTS `" + procedureName + "`;\n" +
"delimiter ;;\n" + resultSet.getString("Create Procedure") + ";;\n" + "delimiter ;\n";
sqlBuilder.append(createProcedureSql).append("\n");
}
}
}
private void exportTriggers(Connection connection, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW TRIGGERS")) {
while (resultSet.next()) {
String triggerName = resultSet.getString("Trigger");
exportTrigger(connection, triggerName, sqlBuilder);
}
}
}
private void exportTrigger(Connection connection, String triggerName, StringBuilder sqlBuilder) throws SQLException {
try (Statement statement = connection.createStatement(); ResultSet resultSet = statement.executeQuery("SHOW CREATE TRIGGER " + triggerName)) {
if (resultSet.next()) {
String createTriggerSql = "DROP TRIGGER IF EXISTS `" + triggerName + "`;\n" +
"delimiter ;;\n" + resultSet.getString("SQL Original Statement") + ";;\n" +
"delimiter ;\n";
sqlBuilder.append(createTriggerSql).append("\n");
}
}
}
@Override
public void updateProcedure(Connection connection, String databaseName, String schemaName, Procedure procedure) throws SQLException {
try {