ImageCodeHandler.java
2.46 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
package com.huaheng.gateway.handler;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import javax.imageio.ImageIO;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.util.FastByteArrayOutputStream;
import org.springframework.web.reactive.function.BodyInserters;
import org.springframework.web.reactive.function.server.HandlerFunction;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import com.google.code.kaptcha.Producer;
import com.huaheng.common.core.constant.Constants;
import com.huaheng.common.core.utils.IdUtils;
import com.huaheng.common.core.utils.sign.Base64;
import com.huaheng.common.core.web.domain.AjaxResult;
import com.huaheng.common.redis.service.RedisService;
import reactor.core.publisher.Mono;
/**
* 验证码获取
*/
@Component
public class ImageCodeHandler implements HandlerFunction<ServerResponse> {
private static final Logger log = LoggerFactory.getLogger(ImageCodeHandler.class);
@Autowired
private Producer producer;
@Autowired
private RedisService redisService;
@Override
public Mono<ServerResponse> handle(ServerRequest serverRequest) {
// 生成验证码
String capText = producer.createText();
String capStr = capText.substring(0, capText.lastIndexOf("@"));
String verifyCode = capText.substring(capText.lastIndexOf("@") + 1);
BufferedImage image = producer.createImage(capStr);
// 保存验证码信息
String uuid = IdUtils.simpleUUID();
String verifyKey = Constants.CAPTCHA_CODE_KEY + uuid;
redisService.setCacheObject(verifyKey, verifyCode, Constants.CAPTCHA_EXPIRATION, TimeUnit.MINUTES);
// 转换流信息写出
FastByteArrayOutputStream os = new FastByteArrayOutputStream();
try {
ImageIO.write(image, "jpg", os);
} catch (IOException e) {
log.error("ImageIO write err", e);
return Mono.error(e);
}
AjaxResult ajax = AjaxResult.success();
ajax.put("uuid", uuid);
ajax.put("img", Base64.encode(os.toByteArray()));
return ServerResponse.status(HttpStatus.OK)
.body(BodyInserters.fromValue(ajax));
}
}