centos安装git并配置密钥公钥 下载安装包下载安装tar -vxf /usr/local/git/git-2.9.5.tar.gz cd /git-2.9.5 ./configure --prefix=/usr/local/git make && make install环境变量vi /etc/profile 末尾添加 export GIT_PATH=/usr/local/git/bin export PATH=$JAVA_HOME/bin:$PATH:$GIT_PATH source /etc/profile git --version配置git信息git config --global user.name "username" git config --global user.email "邮箱"生成密钥和公钥一直回车就行 ssh-keygen -t rsa -C "邮箱"查看公钥内容，配置到码云、gitlab或github等cat ~/.ssh/id_rsa.pub查看私钥cat ~/.ssh/id_rsa

centos7 安装及卸载 jekenis 下载rpm下载 我下载的是：jenkins-2.300-1.1.noarch.rpm 创建目录存放，后进入目录执行安装安装执行命令[root@centos jekenis]# rpm -ivh jenkins-2.300-1.1.noarch.rpm Preparing... ################################# [100%] Updating / installing... 1:jenkins-2.300-1.1 ################################# [100%]查看安装位置[root@centos jekenis]# rpm -qc jenkins /etc/init.d/jenkins /etc/logrotate.d/jenkins /etc/sysconfig/jenkins 修改用户名和端口 vim /etc/sysconfig/jenkins JENKINS_USER="root" JENKINS_PORT="89" 配置jdk路径 查看安装路径which java /usr/bin/java 配置，在 candidates 后追加jdk 安装路径vim /etc/init.d/jenkins启动systemctl daemon-reload systemctl start jenkins通过IP:PORT访问即可 查看初始密码：vi /var/lib/jenkins/secrets/initialAdminPassword docker查看初始密码 docker exec 容器名称 cat /var/jenkins_home/secrets/initialAdminPassword#docker启动jenkins docker run -it -d -m 1024M --oom-kill-disable -u root --name jenkins -p 30001:30001 -p 30002:8080 -p 30003:5000 -v /etc/localtime:/etc/localtime [容器REPOSITORY]我选择的是安装推荐的插件其他记得开启防火墙及安全组重启命令systemctl daemon-reload停止命令service jenkins stop卸载命令yum clean all yum -y remove jenkins rpm -e jenkins 卸载 rpm -ql jenkins 检查是否卸载成功 find / -iname jenkins | xargs -n 1000 rm -rf 彻底删除残留文件其他浏览器进入Jenkins，登录 http://localhost:89/关闭Jenkins http://localhost:89/exit重启Jenkies http://localhost:89/restart重新加载配置信息 http://localhost:89/reload

Centos卸载yum及重装（亲测） 问题之前因为某些问题，到账yum出问题，及python也卸载重装了，试了各种方法都不行。No module named yum 或者 -bash: /usr/bin/yum: /usr/bin/python: bad interpreter解决方法删除pythonrpm -qa|grep python|xargs rpm -ev --allmatches --nodeps whereis python |xargs rm -frv验证python 验证删除，返回无结果whereis python删除yumrpm -qa|grep yum|xargs rpm -ev --allmatches --nodeps whereis yum |xargs rm -frv创建目录python和yum用以存放rpm包mkdir /usr/local/src/python mkdir /usr/local/src/yum下载的时候主要和系统版本对应上，我的系统上centos7.9https://mirrors.ustc.edu.cn/centos/7.9.2009/os/x86_64/Packages/yum包yum-3.4.3-168.el7.centos.noarch.rpm yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch.rpm yum-metadata-parser-1.1.4-10.el7.x86_64.rpmpython包python-2.7.5-89.el7.x86_64.rpm python-libs-2.7.5-89.el7.x86_64.rpm rpm-python-4.11.3-45.el7.x86_64.rpm python-devel-2.7.5-89.el7.x86_64.rpm python-pycurl-7.19.0-19.el7.x86_64.rpm python-iniparse-0.4-9.el7.noarch.rpm python-urlgrabber-3.10-10.el7.noarch.rpm安装cd /usr/local/src/python rpm -ivh python-* rpm-python-* --nodeps --forcecd /usr/local/src/yum rpm -ivh yum-* 下载rpm

Graphics2D 图片上绘制文字，并设置文字边框 代码实例 // 读取原图片信息 //得到文件 File file = new File("d:\\1.png"); //文件转化为图片 Image srcImg = ImageIO.read(file); //获取图片的宽 int srcImgWidth = srcImg.getWidth(null); //获取图片的高 int srcImgHeight = srcImg.getHeight(null); BufferedImage bufImg = new BufferedImage(srcImgWidth, srcImgHeight, BufferedImage.TYPE_INT_RGB); Graphics2D g2 = bufImg.createGraphics(); g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE); g2.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY); FontRenderContext frc = g2.getFontRenderContext(); TextLayout tl = new TextLayout("你好", new Font("黑体", Font.BOLD, 25), frc); //文字所在位置 Shape sha = tl.getOutline(AffineTransform.getTranslateInstance(690,390)); g2.setStroke(new BasicStroke(3.0f)); //边框颜色 g2.setColor(new Color(178, 113, 23)); g2.draw(sha); //字体颜色 g2.setColor(Color.WHITE); g2.fill(sha); g2.dispose(); ByteArrayOutputStream bs = new ByteArrayOutputStream(); ImageOutputStream imOut = ImageIO.createImageOutputStream(bs); ImageIO.write(bufImg, "png", imOut); InputStream inputStream = new ByteArrayInputStream(bs.toByteArray()); OutputStream outStream = new FileOutputStream("d:\\3.png"); IOUtils.copy(inputStream, outStream); inputStream.close(); outStream.close();

Graphics2D 在一张图片上添加一个带有透明背景的图片或绘制透明图片 代码实例 // 读取原图片信息 底图 //得到文件 File file = new File("d:\\1.png"); //文件转化为图片 Image srcImg = ImageIO.read(file); //获取图片的宽 int srcImgWidth = srcImg.getWidth(null); //获取图片的高 int srcImgHeight = srcImg.getHeight(null); // 加水印 BufferedImage bufImg = new BufferedImage(srcImgWidth, srcImgHeight, BufferedImage.TYPE_INT_RGB); Graphics2D gs = bufImg.createGraphics(); //得到带有透明背景的图片 Image ima=ImageIO.read(new File("d:\\2.png")); BufferedImage bi=new BufferedImage(ima.getWidth(null),ima.getHeight(null),BufferedImage.TYPE_INT_BGR); Graphics2D gg=bi.createGraphics(); bi= gg.getDeviceConfiguration().createCompatibleImage(ima.getWidth(null), ima.getHeight(null), Transparency.TRANSLUCENT); gg = bi.createGraphics(); gg.drawImage(ima, 0, 0, null); gg.dispose(); //将透明背景图绘制到底图上 // 第一参数->设置的内容，后面两个参数->文字在图片上的坐标位置(x,y) gs.drawImage(bi, 605, 148,null); gs.dispose(); ByteArrayOutputStream bs = new ByteArrayOutputStream(); ImageOutputStream imOut = ImageIO.createImageOutputStream(bs); ImageIO.write(bufImg, "png", imOut); InputStream inputStream = new ByteArrayInputStream(bs.toByteArray()); OutputStream outStream = new FileOutputStream("d:\\3.png"); IOUtils.copy(inputStream, outStream); inputStream.close(); outStream.close();绘制透明图片 int width=256; int height=256; //创建BufferedImage对象 BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); // 获取Graphics2D Graphics2D g2d = image.createGraphics(); // 增加下面代码使得背景透明 image = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT); g2d.dispose(); g2d = image.createGraphics(); // 释放对象 g2d.dispose(); // 保存文件 ImageIO.write(image, "png", new File("D:/test.png"));

Graphics2D 图片上添加图片或绘制二维码 代码实例 // 读取原图片信息 //得到文件 File file = new File("d:\\1.png"); //文件转化为图片 Image srcImg = ImageIO.read(file); //获取图片的宽 int srcImgWidth = srcImg.getWidth(null); //获取图片的高 int srcImgHeight = srcImg.getHeight(null); // 加水印 BufferedImage bufImg = new BufferedImage(srcImgWidth, srcImgHeight, BufferedImage.TYPE_INT_RGB); Graphics2D g = bufImg.createGraphics(); g.drawImage(srcImg, 0, 0, srcImgWidth, srcImgHeight, null); //使用工具类生成二维码 Image image = createQrCode("二维码内容", 226, 226, "二维码中间logo图片地址"); //将小图片绘到大图片上,表示你的小图片在大图片上的位置。 g.drawImage(image, 263, 700, null); //或者将图片绘制上去 File file = new File("d:\\2.png"); BufferedImage read = ImageIO.read(file); Graphics2D k = bufImg.createGraphics(); //将小图片绘到大图片上,表示你的小图片在大图片上的位置。 k.drawImage(read, 650, 188, 150,150,null); k.setColor(Color.WHITE); k.dispose(); //设置颜色。 g.setColor(Color.WHITE); g.dispose(); ByteArrayOutputStream bs = new ByteArrayOutputStream(); ImageOutputStream imOut = ImageIO.createImageOutputStream(bs); ImageIO.write(bufImg, "png", imOut); InputStream inputStream = new ByteArrayInputStream(bs.toByteArray()); OutputStream outStream = new FileOutputStream("d:\\3.png"); IOUtils.copy(inputStream, outStream); inputStream.close(); outStream.close(); private static BufferedImage createQrCode(String content, int width, int height, String logoPath) throws IOException { QrConfig config = new QrConfig(width, height); if (logoPath != null) { Image image = ImageIO.read(new FileInputStream(new File(logoPath))); config.setImg(image); } config.setErrorCorrection(ErrorCorrectionLevel.H); return QrCodeUtil.generate( content, config); }二维码生成工具引用 <dependency> <groupId>cn.hutool</groupId> <artifactId>hutool-all</artifactId> <version>5.2.4</version> </dependency>

王者营地战绩数据王者荣耀查询网页源码 源码获取王者荣耀战绩数据查询网站代码，根据网络获取的数据前端展示，对接 数据接口 ，实时更新王者用户信息及战绩详情，代码用于学习交流适用人群：哪怕是小白立马上手（本文内容仅为技术科普，请勿用于非法用途。网站数据均源自网络，与本站无任何直接关系,均不对数据来源准确性及用处承担任何法律责任。如有侵权请 联系:uncle@maven.vip） 获取 遵循自愿原则 支付宝扫码，免费自动发送 请遵循自愿原则,本站不做任何强制引导,感谢您的打赏 关闭 .wxShade { position: fixed; top: 50%; transform: translateY(-50%); width: 250px; margin: 0 20%; background: url('https://www.maven.vip/usr/themes/Joe-master/assets/img/background.png') no-repeat; background-size: 100% 100%; z-index: 100; display: none; } .shade { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: #000; opacity: .4; z-index: 99; display: none; } .wxShade .card, .zfbShade .card { margin: 0.22rem 0; display: flex; justify-content: center; width: auto; height: auto; } .wxShade .paymentDone, .zfbShade .paymentDone { color: #666666; font-size: .26rem; margin:0; } input{ margin-bottom: 10px; border: 1px solid transparent #ccc; border-radius: 4px; height: 30px; } button{ background-color: #1ab394; border-color: #1ab394; color: #fff; min-width: 120px; display: inline-block; padding: 6px 12px; margin-bottom: 10px; font-size: 14px; font-weight: 400; line-height: 1.42857143; text-align: center; white-space: nowrap; vertical-align: middle; -ms-touch-action: manipulation; touch-action: manipulation; cursor: pointer; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none; background-image: none; border: 1px solid transparent; border-radius: 4px; } function closePay(){ $('.shade').hide(); $('.couponBox').slideUp(300); $('.zhifuSlide').slideUp(300); $('.wxShade').fadeOut(100); } function butPay(){ var email =$("#email").val(); if(!email){ alert("请输入接收代码的邮箱") return; } $.post("https://yd.maven.vip/open/api/pay-qr-wz", { email: email, }, data => { if(data.code!=0){ return alert(data.msg); } var config = { width: 180, //二维码宽度 height: 180, //二维码高度 text: data.data, //二维码扫描结果，文本示例 }; $('#qrcode').html(''); //调用生成二维码方法 $('#qrcode').qrcode(config); //调用生成二维码方法 $('.shade').show(); $('.wxShade').fadeIn(500); }); } 演示网站演示 获取查询接口

JAVA王者荣耀营地数据解析 根据营地号获取王者荣耀战绩、皮肤、英雄数据，提供营地号查询接口 营地数据解析 源码下载

BigDecimal 运算：加法： add()     减法：subtract()乘法：multiply()    除法：divide()    绝对值：abs()取整：BigDecimal bd = new BigDecimal(“12.1”);// 向上取整long l = bd.setScale( 0, BigDecimal.ROUND_UP ).longValue();// 向下取整long l = bd.setScale( 0, BigDecimal.ROUND_DOWN ).longValue();保留2位小数：BigDecimal bg = new BigDecimal(f);BigDecimal f1 = bg.setScale(2, BigDecimal.ROUND_HALF_UP);比较BigDecimal a = new BigDecimal (101);BigDecimal b = new BigDecimal (111); //使用compareTo方法比较//注意：a、b均不能为null，否则会报空指针if(a.compareTo(b) == -1){    System.out.println("a小于b");} if(a.compareTo(b) == 0){    System.out.println("a等于b");} if(a.compareTo(b) == 1){    System.out.println("a大于b");} if(a.compareTo(b) > -1){    System.out.println("a大于等于b");} if(a.compareTo(b) < 1){    System.out.println("a小于等于b");}int i = bigDecimal.compareTo(BigDecimal.ZERO);i=0:表示bigDecimal的值  等于 0i=1:表示bigDecimal的值与 大于0i=-1:表示bigDecimal的值与 小于 0

SQL Server 数据库密码修改 首先登陆数据库，点开‘安全性’选择自己的数据库账户，双击然后在此修改密码，点击确认，密码就该了