新增了读图片的特性

[dota17]

在excel07格式的文件中图片的数据和单元格的数据是分开存放的，所以在读的时候也是分开读。用户可以先读图片的数据，将图片数据保存在List<ImageData>中，然后再读单元格的数据，最后再把单元格数据和图片数据进行对应。

ImageData中保存了图片所在sheet的名字、index、在sheet中的坐标、图片类型、图片数据等信息。

代码可能还有不完善的地方，欢迎提出意见

用法：
/**
* 使用文件名读图片信息，默认读所有sheet中的图片，图片数据放在imageDataList中
*/
@test
public void readImageWithFileNameTest() throws IOException {
String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);
EasyExcel.readImage(fileName, imageDataReadListener);
}

/**
 * 使用输入流读图片信息，默认读所有sheet中的图片，图片数据放在imageDataList中
 */
@Test
public void readImageWithStreamTest() throws IOException {
    String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
    ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
    ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);
    File imageFile = new File(fileName);
    InputStream in = new FileInputStream(imageFile);
    EasyExcel.readImage(in, 1, imageDataReadListener);
    in.close();
}

/**
 * 使用文件名读指定sheet图片信息，图片数据放在imageDataList中
 */
@Test
public void readImageWithSheetNameTest() throws IOException {
    String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
    ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
    ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);

    EasyExcel.readImage(fileName, "image1", imageDataReadListener);
}

/**
 * 使用输入流读指定sheet图片信息，图片数据放在imageDataList中
 */
@Test
public void readImageWithSheetNameTest1() throws IOException {
    String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
    ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
    ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);
    File imageFile = new File(fileName);
    InputStream in = new FileInputStream(imageFile);

    EasyExcel.readImage(in, "image1", imageDataReadListener);
    in.close();
}

/**
 * 使用文件名读指定索引的sheet中的图片信息，图片数据放在imageDataList中
 */
@Test
public void readImageWithSheetNoTest() throws IOException {
    String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
    ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
    ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);

    EasyExcel.readImage(fileName, 2, imageDataReadListener);
}

/**
 * 使用输入流读指定索引的sheet中的图片信息，图片数据放在imageDataList中
 */
@Test
public void readImageWithSheetNoTest1() throws IOException {
    String fileName = TestFileUtil.getPath() + "demo" + File.separator + "imageRead.xlsx";
    ArrayList<ImageData> imageDataList = new ArrayList<ImageData>();
    ImageDataReadListener imageDataReadListener = new ImageDataReadListener(imageDataList);
    File imageFile = new File(fileName);
    InputStream in = new FileInputStream(imageFile);

    EasyExcel.readImage(in, 2, imageDataReadListener);
    in.close();
}`

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[zhuangjiaju]

感觉没有支持03版呀 这个感觉略坑……
然后代码有点读 有点方

[liaoliang]

没有excel带图的数据读取呀 怎么搞