Question

控制台中的数据如下：

"to add: 
rand_num = 1-231881-6-70885-12
name = heat boy
type = caucasian
price = 700.0
date = 2018-08-01"

相反，出于某种原因我在数据库中得到了这个信息：

"to add: 
rand_num = 1-231881-6-70885-12
name = heat boy
type = caucasian
price = 70"

我的控制器：

public class Controller {
    private description =   "to add: \n"+
                            "rand_num = 1-231881-6-70885-12 \n"+
                            "name = heat boy \n"+
                            "type = caucasian \n"+
                            "price = 700.0 \n"+
                            "date = 2018-08-01"


    private Model textFields() {
        Model model = new Model();
        model.setRand_num(description.getText());
    }
    try {
        DAOClass daoClass = new DAOCLass();
        daoClass.insert(textFields());
    }
    catch(SQLException e){
        System.out.println(e);
    }catch(ClassNotFoundException e) {
        System.out.println(e);
    }
}

我的模特：

public class model {
    private SimpleStringProperty description;


    public Model() {
        this("");
    }    


    public model(String description) {
        super();
        this.rand_num = new SimpleStringProperty(description);
    }

    //getter
        public String getDescription() {
            return description.get();
        }
    //setter
       public void setDescription(String description) {
            this.description.set(description);
        }   
    //property
    public StringProperty descriptionProperty(){
        return description;
    } 

    @Override
    public String toString() {
        return "to add: " + 
    }
}

DAO类

public class DAO {
    public void insert(Model model) throws SQLException, ClassNotFoundException {
        //initializing PreparedStatement
        PreparedStatement preparedStatement = null;

        String updateQuery =
                        "INSERT INTO modelDB \n" +
                        "(description) \n" +
                        "VALUES \n" +
                        "(?)";

        //Execute DELETE operation
        try {
            preparedStatement = connection.prepareStatement(updateQuery);

            preparedStatement.setString(1, model.description());

            preparedStatement.executeUpdate(); 
        } catch (SQLException e) {
            System.out.print("Error: " + e);
            throw e;
        }
        finally {
            if(preparedStatement != null)
            {
                preparedStatement.close();
            }
        }          
    }
}

我的SQLite表结构：

CREATE TABLE userActivityLogs (
    logId           INTEGER         PRIMARY KEY AUTOINCREMENT,
    description        VARCHAR (10000)
);

现在，我知道SQLite没有限制，即使我使用varChar（10000）也是如此。所有这些都完美地显示在控制台上，但是一旦它进入数据库，它就会被截断。为什么会这样，如何解决此问题？

Answer 1

我没有看到您的随机数被截断，所以这里的varchar（10000）不在起作用。

我在您的代码中看到的是：

preparedStatement.setString(4, model.getPrice());
preparedStatement.setString(4, model.getDate());

您使用相同的价格和日期索引。

SQLite截断我的数据

1 个答案: