feat：

为用户添加默认头像

tr-framework/src/main/java/cn/tr/core/utils/AvatarUtil.java

@@ -0,0 +1,176 @@
+package cn.tr.core.utils;
+
+import cn.hutool.core.io.IoUtil;
+import cn.hutool.core.util.StrUtil;
+import org.springframework.util.Base64Utils;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.geom.RoundRectangle2D;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Random;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * @ClassName : AvatarUtil
+ * @Description :
+ * @Author : LF
+ * @Date: 2023年09月04日
+ */
+
+public class AvatarUtil {
+    /**
+     * 圆角大小
+     */
+    private static final Integer FILLET=150;
+    /**
+     * 绘制字体头像
+     * 如果是英文名，只显示首字母大写
+     * 如果是中文名，只显示最后两个字
+     * @param name
+     * @throws IOException
+     * @return  头像的base64存储
+     */
+    public static String generateAvatar(String name){
+        if(StrUtil.isBlank(name)){
+            name="匿名";
+        }
+        int width = 100;
+        int height = 100;
+        int nameLen = name.length();
+        String nameWritten;
+        // 如果用户输入的姓名少于等于2个字符，不用截取
+        if (nameLen <= 2) {
+            nameWritten = name;
+        } else {
+            // 如果用户输入的姓名大于等于3个字符，截取后面两位
+            String first = name.substring(0, 1);
+            if (isChinese(first)) {
+                // 截取倒数两位汉字
+                nameWritten = name.substring(nameLen - 2);
+            } else {
+                // 截取前面的两个英文字母
+                nameWritten = name.substring(0, 2).toUpperCase();
+            }
+        }
+        BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+
+        Graphics2D g2 = (Graphics2D) bi.getGraphics();
+        g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+
+        g2.setBackground(getRandomColor());
+
+        g2.clearRect(0, 0, width, height);
+
+        g2.setPaint(Color.WHITE);
+
+
+        Font font = null;
+        // 两个字及以上
+        if(nameWritten.length() >= 2) {
+            font = new Font("微软雅黑", Font.PLAIN, 30);
+            g2.setFont(font);
+
+            String firstWritten = nameWritten.substring(0, 1);
+            String secondWritten = nameWritten.substring(1, 2);
+
+            // 两个中文 如 张三
+            if (isChinese(firstWritten) && isChinese(secondWritten)) {
+                g2.drawString(nameWritten, 20, 60);
+            }
+            // 首中次英 如 张S
+            else if (isChinese(firstWritten) && !isChinese(secondWritten)) {
+                g2.drawString(nameWritten, 27, 60);
+
+            }
+            // 首英,如 ZS
+            else {
+                nameWritten = nameWritten.substring(0,1);
+            }
+
+        }
+        // 一个字
+        if(nameWritten.length() ==1) {
+            // 中文
+            if(isChinese(nameWritten)) {
+                font = new Font("微软雅黑", Font.PLAIN, 50);
+                g2.setFont(font);
+                g2.drawString(nameWritten, 25, 70);
+            }
+            // 英文
+            else {
+                font = new Font("微软雅黑", Font.PLAIN, 55);
+                g2.setFont(font);
+                g2.drawString(nameWritten.toUpperCase(), 33, 67);
+            }
+
+        }
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        BufferedImage rounded = makeRoundedCorner(bi, FILLET);
+        try {
+            ImageIO.write(rounded, "png", outputStream);
+            byte[] bytes = outputStream.toByteArray();
+            IoUtil.close(outputStream);
+            return Base64Utils.encodeToString(bytes);
+        }catch (Exception e){
+            return "";
+        }
+
+    }
+
+
+    /**
+     * 判断字符串是否为中文
+     * @param str
+     * @return
+     */
+    public static boolean isChinese(String str) {
+        String regEx = "[\\u4e00-\\u9fa5]+";
+        Pattern p = Pattern.compile(regEx);
+        Matcher m = p.matcher(str);
+        if (m.find())
+            return true;
+        else
+            return false;
+    }
+
+    /**
+     * 获得随机颜色
+     * @return
+     */
+    private static Color getRandomColor() {
+        String[] beautifulColors = new String[]{"2,168,250"};
+        int len = beautifulColors.length;
+        Random random = new Random();
+        String[] color = beautifulColors[random.nextInt(len)].split(",");
+        return new Color(Integer.parseInt(color[0]), Integer.parseInt(color[1]),
+                Integer.parseInt(color[2]));
+    }
+
+
+    /**
+     * 图片做圆角处理
+     * @param image
+     * @param cornerRadius
+     * @return
+     */
+    public static BufferedImage makeRoundedCorner(BufferedImage image, int cornerRadius){
+        int w = image.getWidth();
+        int h = image.getHeight();
+        BufferedImage output = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
+        Graphics2D g2 = output.createGraphics();
+        g2.setComposite(AlphaComposite.Src);
+        g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
+        g2.setColor(Color.WHITE);
+        g2.fill(new RoundRectangle2D.Float(0, 0, w, h, cornerRadius, cornerRadius));
+        g2.setComposite(AlphaComposite.SrcAtop);
+        g2.drawImage(image, 0, 0, null);
+        g2.dispose();
+        return output;
+    }
+
+}

tr-modules/tr-module-system/src/main/java/cn/tr/module/sys/oauth2/dto/AccountUserInfoDTO.java

@@ -1,5 +1,7 @@
 package cn.tr.module.sys.oauth2.dto;
 
+import cn.hutool.core.util.StrUtil;
+import cn.tr.core.utils.AvatarUtil;
 import cn.tr.module.sys.user.dto.*;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.AllArgsConstructor;
@@ -66,6 +68,10 @@ public class AccountUserInfoDTO {
 
         @ApiModelProperty("最后登录时间")
         private Date lastLoginDate;
+
+        public String getAvatar() {
+            return StrUtil.isBlank(avatar)? AvatarUtil.generateAvatar(nickname):avatar;
+        }
     }
 
 

tr-modules/tr-module-system/src/main/java/cn/tr/module/sys/user/dto/OnlineUserSessionDTO.java

@@ -1,6 +1,8 @@
 package cn.tr.module.sys.user.dto;
 
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.StrUtil;
+import cn.tr.core.utils.AvatarUtil;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;
@@ -51,4 +53,8 @@ public class OnlineUserSessionDTO implements Serializable {
     public Integer getTokenCount(){
         return CollectionUtil.size(tokenSessionList);
     }
+
+    public String getAvatar() {
+        return StrUtil.isBlank(avatar)? AvatarUtil.generateAvatar(nickname):avatar;
+    }
 }

tr-modules/tr-module-system/src/main/java/cn/tr/module/sys/user/dto/SysUserDTO.java

@@ -1,5 +1,7 @@
 package cn.tr.module.sys.user.dto;
 
+import cn.hutool.core.util.StrUtil;
+import cn.tr.core.utils.AvatarUtil;
 import cn.tr.core.validation.Insert;
 import cn.tr.core.validation.Update;
 import cn.tr.module.sys.user.enums.UserStatusEnum;
@@ -124,4 +126,9 @@ public class SysUserDTO extends BaseDTO {
 
     private String tenantId;
 
+
+    public String getAvatar() {
+        return StrUtil.isBlank(avatar)? AvatarUtil.generateAvatar(nickname):avatar;
+    }
+
 }

tr-plugins/tr-spring-boot-starter-plugin-satoken/src/main/java/cn/tr/plugin/security/bo/UserLoginInfoBO.java

@@ -1,5 +1,7 @@
 package cn.tr.plugin.security.bo;
 
+import cn.hutool.core.util.StrUtil;
+import cn.tr.core.utils.AvatarUtil;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -91,4 +93,8 @@ public class UserLoginInfoBO implements Serializable {
      * 租户id
      */
     private String tenantId;
+
+    public String getAvatar() {
+        return StrUtil.isBlank(avatar)? AvatarUtil.generateAvatar(nickname):avatar;
+    }
 }

tr-test/src/main/java/cn/tr/test/excel/UserEx.java

@@ -2,7 +2,9 @@ package cn.tr.test.excel;
 
 import cn.tr.core.utils.JsonUtils;
 import cn.tr.module.export.handler.AbstractDataHandler;
+import lombok.extern.slf4j.Slf4j;
 
+@Slf4j
 public class UserEx extends AbstractDataHandler<User> {
 
     public UserEx() {
@@ -11,6 +13,6 @@ public class UserEx extends AbstractDataHandler<User> {
 
     @Override
     public void doHandle(User obj) {
-        System.out.println("接收到数据>>>>>>>>>>>>>:" + JsonUtils.toJsonString(obj));
+        log.info("接收到数据,{}",JsonUtils.toJsonString(obj));
     }
 }