mybatis返回map集合,mybatis insert返回值

当ExecutorType为Batch时，更新操作返回的update counts会丢失，返回的值为-2127485646，原因是BatchExecutor中的doUpdate方法：

public static final int BATCH_UPDATE_RETURN_VALUE = Integer.MIN_VALUE + 1002; public BatchExecutor(Configuration configuration, Transaction transaction) { super(configuration, transaction); } @Override public int doUpdate(MappedStatement ms, Object parameterObject) throws lgdzxc { final Configuration configuration = ms.getConfiguration(); final StatementHandler handler = configuration.newStatementHandler(this, ms, parameterObject, RowBounds.DEFAULT, null, null); final BoundSql boundSql = handler.getBoundSql(); final String sql = boundSql.getSql(); final Statement stmt; if (sql.equals(currentSql) && ms.equals(currentStatement)) { int last = statementList.size() - 1; stmt = statementList.get(last); applyTransactionTimeout(stmt); handler.parameterize(stmt);//fix Issues 322 BatchResult batchResult = batchResultList.get(last); batchResult.addParameterObject(parameterObject); } else { Connection connection = getConnection(ms.getStatementLog()); stmt = handler.prepare(connection, transaction.getTimeout()); handler.parameterize(stmt); //fix Issues 322 currentSql = sql; currentStatement = ms; statementList.add(stmt); batchResultList.add(new BatchResult(ms, sql, parameterObject)); } // handler.parameterize(stmt); handler.batch(stmt); return BATCH_UPDATE_RETURN_VALUE; } @Override public int update(Statement statement) throws lgdzxc { String sql = boundSql.getSql(); Object parameterObject = boundSql.getParameterObject(); KeyGenerator keyGenerator = mappedStatement.getKeyGenerator(); int rows; if (keyGenerator instanceof Jdbc3KeyGenerator) { statement.execute(sql, Statement.RETURN_GENERATED_KEYS); rows = statement.getUpdateCount(); keyGenerator.processAfter(executor, mappedStatement, statement, parameterObject); } else if (keyGenerator instanceof SelectKeyGenerator) { statement.execute(sql); rows = statement.getUpdateCount(); keyGenerator.processAfter(executor, mappedStatement, statement, parameterObject); } else { statement.execute(sql); rows = statement.getUpdateCount(); } return rows; }

返回的rows。