未报告的异常java.sql.SQLException; 必须被抓住或宣布被扔？

  • Z时代
  • 2024-01-10
  • 分类：问答

尝试编译以下代码时遇到此错误。我想知道我做错了什么。

未报告的异常java.sql.SQLException; 必须被抓住或宣布被抛出
 Class.forName（myDriver）;
               ^
private void setupInfo() {
    Driver driver = new org.gjt.mm.mysql.Driver();
    String url = "jdbc:mysql://localhost:3306/test";
    String username = "root";
    String password = "123456";
    String problemFeatureSpecTableName = "ProblemFeatureSpec";
    String solutionFeatureSpectTableName = "SolutionFeatureSpec";
    String classTableName = "Class";
    String extraDataTableName = "ExtraData";
    String casebaseTablename = "CaseBase";
    String problemTableName = "Problem";
    String solutionTableName = "Solution";
    String inactiveContextsTableName = "InactiveContext";
    String constantsTableName = "Constants";
    dbInfo = new DBInfo(new JDBCDriverInfo(driverName, url, username, password),constantsTableName);
    problemSpecInfo = new FeatureSpecRDBInfo(problemFeatureSpecTableName, classTableName, extraDataTableName);
    solutionSpecInfo = new FeatureSpecRDBInfo(solutionFeatureSpectTableName, classTableName, extraDataTableName);
    rdbCasebaseInfo = new RDBCaseBaseInfo(casebaseTablename, solutionTableName, problemTableName, inactiveContextsTableName);
}

回答：

您要么需要在方法中 异常：

public void setupInfo()
{
    try
    {
        // call methods that might throw SQLException
    }
    catch (SQLException e)
    {
        // do something appropriate with the exception, *at least*:
        e.printStackTrace();
    }
}

或 抛出方法SQLException：

private void setupInfo() throws SQLException
{
    // call methods that might throw SQLException
}

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