Image 改装:在POST@body中上传图像
在几个小时的闲逛和尝试不同的解决方案后,我放弃了,我在寻求一些方向,如果可能的话,举个例子。问题是:我有一个类,它有一个图片atribute。我正在使用改型,希望将图像作为HTTP POST正文的一部分发送,但收到一个错误。大声说出代码和错误 提前感谢您的帮助 POJO类:Image 改装:在POST@body中上传图像,image,post,upload,retrofit,wcf-rest,Image,Post,Upload,Retrofit,Wcf Rest,在几个小时的闲逛和尝试不同的解决方案后,我放弃了,我在寻求一些方向,如果可能的话,举个例子。问题是:我有一个类,它有一个图片atribute。我正在使用改型,希望将图像作为HTTP POST正文的一部分发送,但收到一个错误。大声说出代码和错误 提前感谢您的帮助 POJO类: public class Class1 { @SerializedName("Picture") private Bitmap mPicture; @SerializedName("Giver") public Inte
public class Class1 {
@SerializedName("Picture")
private Bitmap mPicture;
@SerializedName("Giver")
public Integer mGiver;
public String getPicture() {
return mPicture;
}
public void setPicture (Bitmap picture) {
this.mPicture = picture;
}
public String getLaboratory() {
return mLaboratory;
}
public void setLaboratory(String laboratory) {
this.mLaboratory = laboratory;
}
mClass1.setPicture(mImageBitmap);
mClass1DAO.insertClass1(mClass1, new Callback<Integer>() {
@Override
public void success(Integer uid, Response response) {
mClass1.setUID(uid);
progressDialog.dismiss();
Toast.makeText(getApplicationContext(), R.string.msgThankYou, Toast.LENGTH_LONG).show();
dispatchNavigationDrawerActivity();
}
@Override
public void failure(RetrofitError error) {
progressDialog.dismiss();
showErrorDialog(error.getLocalizedMessage());
}
});
活动:
public class Class1 {
@SerializedName("Picture")
private Bitmap mPicture;
@SerializedName("Giver")
public Integer mGiver;
public String getPicture() {
return mPicture;
}
public void setPicture (Bitmap picture) {
this.mPicture = picture;
}
public String getLaboratory() {
return mLaboratory;
}
public void setLaboratory(String laboratory) {
this.mLaboratory = laboratory;
}
mClass1.setPicture(mImageBitmap);
mClass1DAO.insertClass1(mClass1, new Callback<Integer>() {
@Override
public void success(Integer uid, Response response) {
mClass1.setUID(uid);
progressDialog.dismiss();
Toast.makeText(getApplicationContext(), R.string.msgThankYou, Toast.LENGTH_LONG).show();
dispatchNavigationDrawerActivity();
}
@Override
public void failure(RetrofitError error) {
progressDialog.dismiss();
showErrorDialog(error.getLocalizedMessage());
}
});
错误
在调试中,当我打开类并查看属性时,所有属性都是正确的,但图片是错误的
请参见下面的图片信息:
- Picture {System.Drawing.Bitmap} System.Drawing.Bitmap
+ Flags '((System.Drawing.Image)(medicineToDonate.Picture)).Flags' threw an exception of type 'System.ArgumentException' int {System.ArgumentException}
+ FrameDimensionsList '((System.Drawing.Image)(medicineToDonate.Picture)).FrameDimensionsList' threw an exception of type 'System.ArgumentException' System.Guid[] {System.ArgumentException}
+ Height '((System.Drawing.Image)(medicineToDonate.Picture)).Height' threw an exception of type 'System.ArgumentException' int {System.ArgumentException}
等等
当我试图将图片保存到数据库时,代码抛出System.ArgumentException
我错过了什么
提前感谢这是解决方案,经过3天的尝试。我希望它能节省你的时间。如果它确实节省了你的时间,请给我+1 客户端Android 课程
namespace DoarMed
{
[DataContract]
public class MedicineToDonate
{
[DataMember]
public Int32 UID { get; set; }
[DataMember]
public Bitmap Picture { get; set; }
public class MedicineToDonate {
@SerializedName("Picture")
private String mPicture;
@SerializedName("DateTimeInsert")
public Long mDateTimeInsert;
public Bitmap getPicture() {
return Global.convertStringToBitmap(mPicture);
}
public void setPicture(Bitmap picture) {
this.mPicture = Global.convertBitmapToString(picture);
}
改装
mMedicineToDonateDAO.getGiverAllMedicineToDonate(mGlobal.getUserUID(), new Callback<List<MedicineToDonate>>() {
@Override
public void success(List<MedicineToDonate> mMedicineToDonateList, Response response) {
if (mMedicineToDonateList != null) {
for (int i = 1; i <= mMedicineToDonateList.size(); i++) {
mMedicineToDonate = mMedicineToDonateList.get(i - 1);
mAdapter.add(mMedicineToDonate);
}
}
progressDialog.dismiss();
Fragment mFragment = mFragmentManager.findFragmentByTag(Global.OPTION_DONATE);
FragmentTransaction ft = mFragmentManager.beginTransaction();
ft.detach(mFragment)
.attach(mFragment)
.commit();
mFragmentManager.executePendingTransactions();
}
@Override
public void failure(RetrofitError error) {
progressDialog.dismiss();
showErrorDialog(error.getLocalizedMessage());
}
});
服务器端(C#/IIS/Postgresql)
全球
public static String convertBitmapToString(Bitmap imageBitmap){
ByteArrayOutputStream stream = new ByteArrayOutputStream();
if(imageBitmap != null) {
imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteArray = stream.toByteArray();
return Base64.encodeToString(byteArray, Base64.URL_SAFE);
}else{
return null;
}
}
public static Bitmap convertStringToBitmap (String encodedString) {
try {
byte[] data = Base64.decode(encodedString, Base64.URL_SAFE);
return BitmapFactory.decodeByteArray(data, 0, data.length);
} catch(Exception e) {
e.getMessage();
return null;
}
}
Class
[DataContract]
public class MedicineToDonate
{
[DataMember]
public string Picture { get; set; }
[DataMember]
public Int64 DateTimeInsert { get; set; }
[DataMember]
INSERT:
NpgsqlParameter addPictureParameter = new NpgsqlParameter("@" + Global.MEDICINETODONATE_COL_picture, NpgsqlDbType.Bytea);
byte[] byteArrayPicture = Global.convertStringToByteArray(medicineToDonate.Picture);
addPictureParameter.Value = byteArrayPicture;
SELECT:
byte [] pictureByteArray = (byte[]) reader[12];
mMedicineToDonate.Picture = Global.convertByteArrayToString(pictureByteArray);
public static string convertByteArrayToString(byte[] bytes)
{
char[] chars = new char[bytes.Length / sizeof(char)];
System.Buffer.BlockCopy(bytes, 0, chars, 0, bytes.Length);
return new string(chars);
}