登录验证码

登录验证码

添加依赖

<dependency>
    <groupId>com.github.axet</groupId>
    <artifactId>kaptcha</artifactId>
    <version>0.0.9</version>
</dependency>

生成验证码

创建一个验证码配置类

package com.example.config;

import com.google.code.kaptcha.impl.DefaultKaptcha;
import com.google.code.kaptcha.util.Config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.Properties;

/**
 * 验证码配置类
 */
@Configuration
public class CaptchaConfig {

    @Bean
    public DefaultKaptcha getDefaultKaptcha() {
        //验证码生成器
        DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
        //配置
        Properties properties = new Properties();
        //是否有边框
        properties.setProperty("kaptcha.border", "yes");
        //设置边框颜色
        properties.setProperty("kaptcha.border.color", "105,179,90");
        //边框粗细度，默认为1
        // properties.setProperty("kaptcha.border.thickness","1");
        //验证码
        properties.setProperty("kaptcha.session.key", "code");
        //验证码文本字符颜色 默认为黑色
        properties.setProperty("kaptcha.textproducer.font.color", "blue");
        //设置字体样式
        properties.setProperty("kaptcha.textproducer.font.names", "宋体,楷体,微软雅黑");
        //字体大小，默认40
        properties.setProperty("kaptcha.textproducer.font.size", "30");
        //验证码文本字符内容范围 默认为abced2345678gfynmnpwx
        // properties.setProperty("kaptcha.textproducer.char.string", "");
        //字符长度，默认为5
        properties.setProperty("kaptcha.textproducer.char.length", "4");
        //字符间距 默认为2
        properties.setProperty("kaptcha.textproducer.char.space", "4");
        //验证码图片宽度 默认为200
        properties.setProperty("kaptcha.image.width", "100");
        //验证码图片高度 默认为40
        properties.setProperty("kaptcha.image.height", "40");
        Config config = new Config(properties);
        defaultKaptcha.setConfig(config);
        return defaultKaptcha;
    }
}

访问接口 就可以拿到验证码了 图片类型

@Controller
public class CaptchaController {

    @Resource
    private Producer producer;

    @RequestMapping("/captcha")
    public void captcha(HttpServletRequest request, HttpServletResponse response) {
        // 定义response输出类型为image/jpeg类型
        response.setDateHeader("Expires", 0);
        // Set standard HTTP/1.1 no-cache headers.
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");
        // Set standard HTTP/1.0 no-cache header.
        response.setHeader("Pragma", "no-cache");
        // return a jpeg
        response.setContentType("image/jpeg");
        try {
            String code = producer.createText();
            System.out.println("验证码--->" + code);
            // 将生成的验证码存储到session
            request.getSession().setAttribute("code", code);
            // 生成图片
            BufferedImage bi = producer.createImage(code);
            // 将图片写道浏览器中
            OutputStream os = response.getOutputStream();
            // 设置图片格式 指定输出流
            ImageIO.write(bi, "jpg", os);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

整合到登录

AdminController

@RestController
@RequestMapping("/admin")
public class AdminController {
    
    @PostMapping("/login")
    public RespBean login(@RequestBody AdminLoginParam adminLoginParam) {
        RespBean login = adminService.login(adminLoginParam.getUsername(), adminLoginParam.getPassword());
        return login;
    }
    
}

AdminLoginParam

@Data
@EqualsAndHashCode(callSuper = false)
@Accessors(chain = true)
@ApiModel(value = "AdminLogin对象", description = "")
public class AdminLoginParam {

    @ApiModelProperty(value = "用户名", required = true)
    private String username;

    @ApiModelProperty(value = "密码", required = true)
    private String password;

    @ApiModelProperty(value = "验证码", required = true)
    private String code;

}