点评类网站建设wordpress购买用户组
- 作者: 五速梦信息网
- 时间: 2026年03月21日 11:25
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点评类网站建设,wordpress购买用户组,成都网站推广公司排名,学生网页文章目录 效果展示1.导入maven坐标2.编写代码生成一个验证码图片3.前端如何拿到验证码4. 后端生成验证码5前端代码 效果展示 效果#xff0c;每次进入页面展现出来不同的验证码。
技术 使用别人已经写好的验证码生成器#xff0c;生成图片#xff0c;转为Base64编码#x… 文章目录 效果展示1.导入maven坐标2.编写代码生成一个验证码图片3.前端如何拿到验证码4. 后端生成验证码5前端代码 效果展示 效果每次进入页面展现出来不同的验证码。
技术 使用别人已经写好的验证码生成器生成图片转为Base64编码将验证码存在Redis里面。前端根据传过来的验证码进行登录。登录完成之后将redis里面的验证码删除。
1.导入maven坐标 dependencygroupIdcom.github.whvcse/groupIdartifactIdeasy-captcha/artifactIdversion1.6.2/version/dependencyeasy-captcha 生成验证码的工具。
2.编写代码生成一个验证码图片
import com.wf.captcha.SpecCaptcha;import java.io.FileOutputStream;
import java.io.IOException;public class CaptchaExample {//将验证码传给前端 存储验证码 用户登录的时候 输入验证码进行比较public static void main(String[] args) throws IOException {// 创建一个SpecCaptcha对象参数为宽度、高度、验证码字符数SpecCaptcha captcha new SpecCaptcha(130, 48, 5);// 设置验证码类型为数字字母组合captcha.setCharType(SpecCaptcha.TYPE_DEFAULT);// 获取生成的验证码字符String text captcha.text();System.out.println(验证码: text);// 输出验证码图片到文件FileOutputStream fos new FileOutputStream(captcha.jpg);captcha.out(fos);fos.close();}
}生成的验证码图片
3.前端如何拿到验证码
我们后端生成的是一个图片可以将图片转为字符串即Base64编码的格式前端通过image标签就可以展示图片。
- 后端生成验证码 编写两个API, 在页面夹在的时候请求验证码。前端使用钩子函数。后端将验证码存在Redis里面。 那么如何保证每个用户都有不同的验证码可以生成一个唯一的ID这里用的是UUID保证了用户的唯一性。 import java.io.FileOutputStream; import java.io.IOException; import java.util.UUID; import java.util.concurrent.TimeUnit;RestController public class LoginController {Autowiredprivate RedisTemplateString, Object redisTemplate;public static final String prefixCode njitzx:;//首先先请求一个codeGetMapping(/code)public Result getCode() throws IOException {SpecCaptcha captcha new SpecCaptcha(130, 48, 5);// 设置验证码类型为数字字母组合captcha.setCharType(SpecCaptcha.TYPE_DEFAULT);String base64 captcha.toBase64();// 获取生成的验证码字符String text captcha.text();System.out.println(验证码: text);// 输出验证码图片到文件FileOutputStream fos new FileOutputStream(captcha.jpg);captcha.out(fos);fos.close();//生成一个临时用户的id 对应每一个用户的验证码String uuid UUID.randomUUID().toString();redisTemplate.opsForValue().set(prefixCode uuid, text, TimeConstant.CODE_TIME, TimeUnit.DAYS);return Result.success(new CodeVo(uuid, base64));}GetMapping(/login)public Result login(LoginDTO loginDTO) {String code loginDTO.getCode();String key prefixCode loginDTO.getUuid();String getCode (String) redisTemplate.opsForValue().get(key);if (getCode null) {throw new RuntimeException(验证码已过期);}if (!getCode.equalsIgnoreCase(code)) {throw new RuntimeException(验证码错误);}redisTemplate.delete(key);return Result.success(登录成功);} } 5前端代码 前端 用了vue3element组件开发 script setup import {ref} from vue;import {Search} from element-plus/icons-vue import {onMounted} from vue import {ElMessage} from element-plusonMounted(() {reloadCode(); }) import {getCode,UserLogin} from /util/user.jsconst reloadCode async () {const res await getCode();url.value res.data.data.codeURL;loginData.value.uuid res.data.data.uuid; }const loginData ref({username: ,password: ,code: ,uuid: }) // const url 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1a/7OYstAejotvpaWWgUDpBnEQfjjVCfPV9Ofo60JFj7SgCkMhIkIMHVVvWPDLvU9meaGQZvHJaafF5tQsrI8zYndVcQdfSfKkZP7ASG/hKeDgJCqKsAI/x8dE/INK3wp30UYEBEszihiWNhq1b6zdtwtjCixqzVP51kreJXF1DYl/QPXeDUgM/g6vzt9Gnp/O/ZGaar5CbHhIpn91b9daxeodoOagbHsA9EEVe65HSYfFNGcNmFP3RU580UmRWCRmL2c80NcxYA4gAfXQeIHxRHf4OZMlDQV75P3jNwuvi0HHgRig3dARl6JKi2OmayQZTB7hFuEdBo5VfK26Xt2p/8HTJEJ/DEhT/i2Gr5C/uPLpPt2dro6AhXYIAWj08Hth3sf03k59Fs8Fgg8HWbDDYYLA1Gww2GGzNBoMNBluzwfCLaP8DTqVG9p9iyJQAAAAASUVORK5CYII 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// const url ref(data:image/png;base64,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) const url ref() import {useRouter} from vue-routerconst router useRouter()const login async () {const res await UserLogin(loginData.value)if (res.data.code 200) {ElMessage.success(登录成功)router.push(/container)} else {ElMessage.error(res.data.msg)} } /scripttemplateel-form :inlinetrueel-form-itemel-inputv-modelloginData.usernamestylewidth: 240pxplaceholderPlease inputclearable//el-form-itemel-form-itemel-inputv-modelloginData.passwordstylewidth: 240pxtypepasswordplaceholderPlease input passwordshow-password//el-form-itemel-form-itemel-inputv-modelloginData.codestylewidth: 120pxplaceholder输入验证码:suffix-iconSearch/el-image :srcurl stylewidth: 120px;height: 40px//el-form-item/el-form!– el-button typesuccess click(){router.push(/container)}Login/el-button–el-button typesuccess clicklogin()Login/el-button/templatestyle scoped/style 请求的js代码 import request from /util/request.jsexport const getCode () {return request.get(/code) }export const UserLogin (data) {var params new URLSearchParams();for (let key in data) {params.append(key, data[key])}return request.get(/login, {params}) } 不传验证码会报错。验证码过期会显示验证码已经过期 Redis图形化界面
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