Kaptcha for spring boot autoconfigure.
<dependency>
<groupId>com.youkol.support.kaptcha</groupId>
<artifactId>kaptcha-spring-boot-starter</artifactId>
<version>LATEST_VERSION</version>
</dependency># Support zero-configuration mode, it will running by the default value.
# For Example:
youkol:
web:
kaptcha:
enabled: true
servlet:
enabled: true
url-mapping: /kaptcha
size-param: size
font-size-param: fontSize
cache:
# cache.type = session or redis.
type: session
token-name: YOUKOL-KAPTCHA-TOKEN
timeout: 300000
config:
kaptcha:
#
# Note: To avoid syntax errors in yaml files,
# when border property is "no", don't set value of border color and border thickness.
# when border property is "yes", You must omit the border property setting and
# set value of border color and border thickness directly.
#
# Take a look at the following example:
# 1) Hide border
border: "no"
# 2) Show border
# border:
# color: "105,179,90"
# thickness: 1
producer:
impl: com.google.code.kaptcha.impl.DefaultKaptcha
textproducer:
# simple math text creator, for example `7+8=?`
# impl: com.youkol.support.kaptcha.text.impl.SimpleMathTextCreator
impl: com.google.code.kaptcha.text.impl.DefaultTextCreator
char:
string: abcde2345678gfynmnpwx
length: 5
space: 2
font:
names: \u5fae\u8f6f\u96c5\u9ed1,Arial,\u5b8b\u4f53,\u6977\u4f53
size: 40
color: BLUE
noise:
impl: com.google.code.kaptcha.impl.NoNoise
color: BLACK
obscurificator:
impl: com.google.code.kaptcha.impl.WaterRipple
word:
impl: com.youkol.support.kaptcha.text.impl.SimpleWordRenderer
background:
impl: com.google.code.kaptcha.impl.DefaultBackground
clear:
from: LIGHT_GRAY
to: WHITE
image:
width: 200
height: 50GET http(s)://{host}:{port}/{contextPath}/{urlMapping}
For example:
-
response image
Request:
GEThttp://localhost:8080/kaptcha
Response:kaptcha image (image/jpeg) -
response json
Request:
GEThttp://localhost:8080/kaptcha?format=base64
Response:{ "code": "200", "message": "OK", "data": { "uuid": "f7e7001f042a47eaa73dcdafe01a7b9d", "image": "data:image/jpeg;base64,/9j/4AA...RRRQB//9k=" } }
sample code:
// For example:
@Autowired
private KaptchaCacheResolver kaptchaCacheResolver;
public Object login(HttpServletRequest request) {
// some things.
// valid Kaptcha
String code = request.getParameter("code");
boolean bValid = kaptchaCacheResolver.validKaptcha(request, code);
// other things.
}Note: when use redis mode, you must put token-name and token-value in request header.
- token-name:
youkol.web.kaptcha.cache.token-name - token-value: the uuid of response (The uuid also can get from response header)
About Kaptcha
Please see more information about this project.
http://code.google.com/p/kaptcha/
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