com.publiccms.common.tools

类 ImageUtils

java.lang.Object

com.publiccms.common.tools.ImageUtils

public class ImageUtils
extends java.lang.Object

ImageUtils

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	DEFAULT_FORMAT_NAME
static java.lang.String	FORMAT_NAME_JPG
static java.lang.String	FORMAT_NAME_PNG
static java.lang.String	FORMAT_NAME_SVG
static java.lang.String	FORMAT_NAME_WEBP
private static org.apache.commons.logging.Log	log

构造器概要

构造器

限定符	构造器和说明
private	ImageUtils()

方法概要

限定符和类型	方法和说明
static void	drawImage(int width, int height, java.lang.String text, java.io.OutputStream outputStream) @RequestMapping(value = "getCaptchaImage") public ResponseEntity<StreamingResponseBody> getCaptchaImage(HttpSession session) { String captcha = VerificationUtils.getRandomString("ABCDEFGHJKMNPQRSTUVWXYZ23456789", 4); session.setAttribute("captcha", captcha); StreamingResponseBody body = new StreamingResponseBody() { @Override public void writeTo(OutputStream outputStream) throws IOException { ImageUtils.drawImage(120, 30, captcha, outputStream); } }; return ResponseEntity.ok().body(body); } @PostMapping("doLogin") public String login(@RequestAttribute SysSite site, HttpSession session, String username, String password, String captcha, String returnUrl, Long clientId, String uuid, HttpServletRequest request, ModelMap model) { String sessionCaptcha = (String) session.getAttribute("captcha"); session.removeAttribute("captcha"); if (null !
private static java.awt.Font	getFont(int size)
static java.lang.String	getImageData(int width, int height, java.lang.String text)
private static java.awt.Color	getRandColor(int fc, int bc)
static void	image2Ico(java.io.InputStream input, java.lang.String suffix, int size, java.lang.String icoFilepath)
static void	image2Webp(java.lang.String imageFilepath, java.lang.String webpFilepath)
private static void	shearX(java.awt.Graphics g, int w1, int h1, java.awt.Color color)
static boolean	svgSafe(java.io.File imageFile)
static java.awt.image.BufferedImage	thumb(java.awt.image.BufferedImage sourceImage, int width, int height, boolean png)
static void	thumb(java.lang.String sourceFilePath, java.lang.String thumbFilePath, int width, int height, java.lang.String suffix)
static void	webp2Image(java.io.InputStream webpInputStream, boolean png, java.lang.String imageFilepath)
static void	webp2Image(java.lang.String webpFilepath, boolean png, java.lang.String imageFilepath)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

log

private static final org.apache.commons.logging.Log log

FORMAT_NAME_PNG

public static final java.lang.String FORMAT_NAME_PNG

另请参阅:

常量字段值

FORMAT_NAME_JPG

public static final java.lang.String FORMAT_NAME_JPG

另请参阅:

常量字段值

FORMAT_NAME_WEBP

public static final java.lang.String FORMAT_NAME_WEBP

另请参阅:

常量字段值

FORMAT_NAME_SVG

public static final java.lang.String FORMAT_NAME_SVG

另请参阅:

常量字段值

DEFAULT_FORMAT_NAME

public static final java.lang.String DEFAULT_FORMAT_NAME

另请参阅:

常量字段值

构造器详细资料

ImageUtils

private ImageUtils()

方法详细资料

getImageData

public static java.lang.String getImageData(int width,
                                            int height,
                                            java.lang.String text)
                                     throws java.io.IOException

参数:

width -

height -

text -

返回:

base64 encoded picture

抛出:

java.io.IOException

drawImage

public static void drawImage(int width,
                             int height,
                             java.lang.String text,
                             java.io.OutputStream outputStream)
                      throws java.io.IOException

 @RequestMapping(value = "getCaptchaImage")
 public ResponseEntity<StreamingResponseBody> getCaptchaImage(HttpSession session) {
     String captcha = VerificationUtils.getRandomString("ABCDEFGHJKMNPQRSTUVWXYZ23456789", 4);
     session.setAttribute("captcha", captcha);
     StreamingResponseBody body = new StreamingResponseBody() {
         @Override
         public void writeTo(OutputStream outputStream) throws IOException {
             ImageUtils.drawImage(120, 30, captcha, outputStream);
         }
     };
     return ResponseEntity.ok().body(body);
 }
 

 @PostMapping("doLogin")
 public String login(@RequestAttribute SysSite site, HttpSession session, String username, String password, String captcha,
         String returnUrl, Long clientId, String uuid, HttpServletRequest request, ModelMap model) {
     String sessionCaptcha = (String) session.getAttribute("captcha");
     session.removeAttribute("captcha");
     if (null != sessionCaptcha && sessionCaptcha.equalsIgnoreCase(captcha)) {
         // login code
     } else {
         return CommonUtils.joinString(UrlBasedViewResolver.REDIRECT_URL_PREFIX, "login.html");
     }
 }
 

参数:

width -

height -

text -

outputStream -

抛出:

java.io.IOException

shearX

private static void shearX(java.awt.Graphics g,
                           int w1,
                           int h1,
                           java.awt.Color color)

getRandColor

private static java.awt.Color getRandColor(int fc,
                                           int bc)

getFont

private static java.awt.Font getFont(int size)

webp2Image

public static void webp2Image(java.io.InputStream webpInputStream,
                              boolean png,
                              java.lang.String imageFilepath)
                       throws java.io.IOException

抛出:

java.io.IOException

webp2Image

public static void webp2Image(java.lang.String webpFilepath,
                              boolean png,
                              java.lang.String imageFilepath)
                       throws java.io.IOException

抛出:

java.io.IOException

image2Webp

public static void image2Webp(java.lang.String imageFilepath,
                              java.lang.String webpFilepath)
                       throws java.io.IOException

抛出:

java.io.IOException

image2Ico

public static void image2Ico(java.io.InputStream input,
                             java.lang.String suffix,
                             int size,
                             java.lang.String icoFilepath)
                      throws java.io.IOException

抛出:

java.io.IOException

svgSafe

public static boolean svgSafe(java.io.File imageFile)
                       throws java.io.IOException

抛出:

java.io.IOException

thumb

public static java.awt.image.BufferedImage thumb(java.awt.image.BufferedImage sourceImage,
                                                 int width,
                                                 int height,
                                                 boolean png)

thumb

public static void thumb(java.lang.String sourceFilePath,
                         java.lang.String thumbFilePath,
                         int width,
                         int height,
                         java.lang.String suffix)
                  throws java.io.IOException

抛出:

java.io.IOException