為什么80%的碼農都做不了架構師？>>> ??

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<plugin>

<groupId>org.apache.maven.plugins</groupId>

<artifactId>maven-compiler-plugin</artifactId>

<version>2.2</version>

<configuration>

<compilerArguments>

<bootclasspath>${java.home}/lib/rt.jar;${java.home}/lib/jce.jar</bootclasspath>

</compilerArguments>

</configuration>

</plugin>

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var files = $('#userImageUpload')[0].files;

files[0]

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* Upload from request stream

*

*/

public static List<String> uploadS3File(Request req) throws Exception {

List<String> fileUrls = new ArrayList<String>();

setFileStoreAttr(req);

try {

Collection<Part> parts = getValidParts(req);

if (parts.size() > 0) {

for (Part part : parts) {

String path = storeFolderName + '/' + UUID.randomUUID();

ObjectMetadata meta = new ObjectMetadata();

meta.setContentType(part.getContentType());

InputStream in = part.getInputStream();

PutObjectRequest request;

if (part.getContentType().contentEquals("image")) {

request = new PutObjectRequest(s3BucketName,

path,

in,

meta);

} else {

request = new PutObjectRequest(s3BucketName,

path,

compressImageByWeithAndHeight(in, 0.5f,200,200),

meta);

}

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request.withCannedAcl(CannedAccessControlList.PublicRead);

s3.putObject(request);

fileUrls.add(Helper.getS3FilePath(path));

}

}

} catch (Exception e) {

e.printStackTrace();

}

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return fileUrls;

}

/**

* helper for file/image upload

*

* @param req

* @return

*/

private static Collection<Part> getValidParts(Request req) {

Collection<Part> parts = new ArrayList<Part>();

try {

for (Part part : req.raw().getParts()) {

ApplicationPart appPart = (ApplicationPart) part;

String fileName = appPart.getSubmittedFileName();

if (fileName != null && !fileName.isEmpty()) {

parts.add(part);

}

}

} catch (Exception e) {

e.printStackTrace();

}

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return parts;

}

/**

* compress image by width , height , quantity

*

* @param input

* @param quantity

* @param width

* @param height

* @return

*/

private static InputStream compressImageByWeithAndHeight(InputStream input, float quantity,int width,int height) {

quantity = quantity == 0f ? 0.5f : quantity;

try {

ImageInputStream imageInput = ImageIO.createImageInputStream(input);

Image image = ImageIO.read(imageInput);

/** 寬,高設定 */

BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

tag.getGraphics().drawImage(image, 0, 0, width, height, null);

ByteArrayOutputStream out = new ByteArrayOutputStream();

JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

JPEGEncodeParam jep = JPEGCodec.getDefaultJPEGEncodeParam(tag);

/** 壓縮質量 */

jep.setQuality(quantity, true);

encoder.encode(tag, jep);

ByteArrayInputStream result = new ByteArrayInputStream(out.toByteArray());

out.close();

return result;

} catch (Exception e) {

e.printStackTrace();

}

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return input;

}

}

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/**

* Get file access url

*

* @param key

* @return

*/

public static String getS3FilePath(String key) {

return s3Domain + '/' + key;

}

轉載于:https://my.oschina.net/hycky/blog/1539284

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