Expression "PreparedStatementstat" is not an rvalue
时间: 2024-05-03 14:17:07 浏览: 7
This error message typically occurs in Java programming when the code is trying to use a PreparedStatement object as a value, when it should be used as a reference instead.
To fix the error, make sure to properly initialize the PreparedStatement object and use it as a reference to execute a SQL query. For example:
```
PreparedStatement preparedStatement = connection.prepareStatement("SELECT * FROM my_table");
ResultSet resultSet = preparedStatement.executeQuery();
```
In this example, the PreparedStatement object is properly initialized and used as a reference to execute a SQL query.
相关问题
Expression "PreparedStatementstat" is not an rvalue 是什么意思,如何解决
这个错误通常是在 Java 中使用 PreparedStatement 时出现的。它意味着你试图把 PreparedStatementstat 作为值进行赋值或传递。
这个错误的原因可能是你在代码中使用了不正确的语法或者没有正确地初始化 PreparedStatement 对象。你可以检查一下代码中是否有类似下面的错误:
```
PreparedStatementstat = con.prepareStatement("SELECT * FROM my_table");
```
应该是这样的:
```
PreparedStatement pstmt = con.prepareStatement("SELECT * FROM my_table");
```
或者
```
PreparedStatement pstmt;
pstmt = con.prepareStatement("SELECT * FROM my_table");
```
如果你仍然遇到这个错误,可以尝试重新编译你的代码或者检查你的 IDE 是否有更新。
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