weixin_40553655的博客

1.将base64字符串生成为PDF String trackingNo = UtilPublic.isEmpty(responseData.get("ShipmentNo")) ? (String) responseData.get("TrackNo") : (String) responseData.get("ShipmentNo"); // base64 Str...

boolean hasKey = redisTemplate.hasKey(key); if(hasKey ){ System.out.print("存在"); } else { System.out.print("不存在"); }

由于公司要与第三方接口进行对接，故有json字符串与JAVA对象相互转换的场景，特此记录。~~~~ 1.定义一个工具类 public class JsonMapper { private static ObjectMapper mapper; private static JsonMapper _instance = new JsonMapper(); private...

package com.test.util; import java.awt.AlphaComposite; import java.awt.Color; import java.awt.Font; import java.awt.Graphics2D; import java.awt.Image; import java.awt.RenderingHints; import java.awt...

package com.test.util; import java.awt.Graphics; import java.awt.Image; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; public c...

今天被这个上传图片搞的头大，特此记录一下~ 刚开始我是用通过传统的 form 表单提交的方式上传文件 <form id="form1" name="form1" th:action="" enctype="multipart/form-data" accept-charset="utf-8" method="post" target="rfFrame"&...