Question

我正在为android开发一个小配方管理工具。对于数据存储，我使用的是ORMLite库。现在我正在尝试将图像作为字节数组保存到数据库中。不知怎的，这不起作用，我无法弄清楚原因。

这是类的构造函数，字节数组传递给

public class RecipeTable {
@DatabaseField(generatedId = true)
int id;
@DatabaseField
String cocktailName;
@DatabaseField
int addition1;
@DatabaseField
int addition2;
@DatabaseField
int addition3;
@DatabaseField
int addition4;
@DatabaseField
int addition5;
@DatabaseField
int addition6;
@DatabaseField (dataType = DataType.BYTE_ARRAY, columnName = "yo")
byte[] imageBytes;
@DatabaseField
Date date;

public RecipeTable(){
}

public RecipeTable(String cocktailName, int addition1, int addition2, int addition3, int addition4, int addition5, int addition6, byte[] imageBytesa) {
    super();
    this.cocktailName = cocktailName;
    this.addition1 = addition1;
    this.addition2 = addition2;
    this.addition3 = addition3;
    this.addition4 = addition4;
    this.addition5 = addition5;
    this.addition6 = addition6;
    this.imageBytes = imageBytesa;

    this.date = new Date(System.currentTimeMillis());
}

@Override
public String toString() {
    JSONObject jsonObject = new JSONObject();
    try {
        jsonObject.put("id", id);
        jsonObject.put("cocktailName", cocktailName);
        jsonObject.put("addition1", addition1);
        jsonObject.put("addition2", addition2);
        jsonObject.put("addition3", addition3);
        jsonObject.put("addition4", addition4);
        jsonObject.put("addition5", addition5);
        jsonObject.put("addition6", addition6);
        jsonObject.put("imageByte", imageBytes);
    } catch (JSONException e) {
        e.printStackTrace();
    }
    return jsonObject.toString();
}
public  byte[] getImageBytes(){return imageBytes;}
public int getId(){return id;}
public String getAddition1(){return "yihha";}

}

在另一个类中，我正在创建RecipeTable的对象

 recipeDao.create(new RecipeTable(etCocktailName.getText().toString(), additionAmounts[0],additionAmounts[1],additionAmounts[2],additionAmounts[3],
                                         additionAmounts[4],additionAmounts[5],imageByte));

像这样创建imageByte

ByteArrayOutputStream stream = new ByteArrayOutputStream();
                        bmp.compress(Bitmap.CompressFormat.PNG, 70, stream);
                        imageByte = stream.toByteArray();

当我试图获取所创建对象的imageByte值时，它的值为null。（recipeTable.get（0）.getImageBytes（））这是我的输出显示的内容（Log.d）：

D / imageByte：[ - 119,90,78,71,13,10,26,10,0,0,0,13,73,72 ......

D /食谱内容:: [{“id”：1，“cocktailName”：“x”，“addition1”：1，“addition2”：1，“addition3”：1，“addition4”：1， “addition5”：11 “addition6”：1}]

缺少imageByte。我认为没有正确传递

提前致谢

将一个字节数组传递给另一个类ORMlite

0 个答案: