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yaru
fgqyxxlr
Commits
3fc965e0
Commit
3fc965e0
authored
Jul 19, 2019
by
RuoYi
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新增@RepeatSubmit注解防止表单重复提交
parent
7e10d16f
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ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/RepeatSubmitInterceptor.java
+55
-0
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/annotation/RepeatSubmit.java
+24
-0
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/impl/SameUrlDataInterceptor.java
+94
-0
No files found.
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/RepeatSubmitInterceptor.java
0 → 100644
View file @
3fc965e0
package
com
.
ruoyi
.
framework
.
interceptor
;
import
java.lang.reflect.Method
;
import
javax.servlet.http.HttpServletRequest
;
import
javax.servlet.http.HttpServletResponse
;
import
org.springframework.stereotype.Component
;
import
org.springframework.web.method.HandlerMethod
;
import
org.springframework.web.servlet.handler.HandlerInterceptorAdapter
;
import
com.ruoyi.common.core.domain.AjaxResult
;
import
com.ruoyi.common.json.JSON
;
import
com.ruoyi.common.utils.ServletUtils
;
import
com.ruoyi.framework.interceptor.annotation.RepeatSubmit
;
/**
* 防止重复提交拦截器
*
* @author ruoyi
*/
@Component
public
abstract
class
RepeatSubmitInterceptor
extends
HandlerInterceptorAdapter
{
@Override
public
boolean
preHandle
(
HttpServletRequest
request
,
HttpServletResponse
response
,
Object
handler
)
throws
Exception
{
if
(
handler
instanceof
HandlerMethod
)
{
HandlerMethod
handlerMethod
=
(
HandlerMethod
)
handler
;
Method
method
=
handlerMethod
.
getMethod
();
RepeatSubmit
annotation
=
method
.
getAnnotation
(
RepeatSubmit
.
class
);
if
(
annotation
!=
null
)
{
if
(
this
.
isRepeatSubmit
(
request
))
{
AjaxResult
ajaxResult
=
AjaxResult
.
error
(
"不允许重复提交,请稍后再试"
);
ServletUtils
.
renderString
(
response
,
JSON
.
marshal
(
ajaxResult
));
return
false
;
}
}
return
true
;
}
else
{
return
super
.
preHandle
(
request
,
response
,
handler
);
}
}
/**
* 验证是否重复提交由子类实现具体的防重复提交的规则
*
* @param httpServletRequest
* @return
* @throws Exception
*/
public
abstract
boolean
isRepeatSubmit
(
HttpServletRequest
request
)
throws
Exception
;
}
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/annotation/RepeatSubmit.java
0 → 100644
View file @
3fc965e0
package
com
.
ruoyi
.
framework
.
interceptor
.
annotation
;
import
java.lang.annotation.Documented
;
import
java.lang.annotation.ElementType
;
import
java.lang.annotation.Inherited
;
import
java.lang.annotation.Retention
;
import
java.lang.annotation.RetentionPolicy
;
import
java.lang.annotation.Target
;
/**
* 自定义注解防止表单重复提交
*
* @author ruoyi
*
*/
@Inherited
@Target
(
ElementType
.
METHOD
)
@Retention
(
RetentionPolicy
.
RUNTIME
)
@Documented
public
@interface
RepeatSubmit
{
}
\ No newline at end of file
ruoyi-framework/src/main/java/com/ruoyi/framework/interceptor/impl/SameUrlDataInterceptor.java
0 → 100644
View file @
3fc965e0
package
com
.
ruoyi
.
framework
.
interceptor
.
impl
;
import
java.util.HashMap
;
import
java.util.Map
;
import
javax.servlet.http.HttpServletRequest
;
import
javax.servlet.http.HttpSession
;
import
org.springframework.stereotype.Component
;
import
com.ruoyi.common.json.JSON
;
import
com.ruoyi.framework.interceptor.RepeatSubmitInterceptor
;
/**
* 判断请求url和数据是否和上一次相同,
* 如果和上次相同,则是重复提交表单。 有效时间为10秒内。
*
* @author ruoyi
*/
@Component
public
class
SameUrlDataInterceptor
extends
RepeatSubmitInterceptor
{
public
final
String
REPEAT_PARAMS
=
"repeatParams"
;
public
final
String
REPEAT_TIME
=
"repeatTime"
;
public
final
String
SESSION_REPEAT_KEY
=
"repeatData"
;
/**
* 间隔时间,单位:秒 默认10秒
*
* 两次相同参数的请求,如果间隔时间大于该参数,系统不会认定为重复提交的数据
*/
private
int
intervalTime
=
10
;
public
void
setIntervalTime
(
int
intervalTime
)
{
this
.
intervalTime
=
intervalTime
;
}
@SuppressWarnings
(
"unchecked"
)
@Override
public
boolean
isRepeatSubmit
(
HttpServletRequest
request
)
throws
Exception
{
// 本次参数及系统时间
String
nowParams
=
JSON
.
marshal
(
request
.
getParameterMap
());
Map
<
String
,
Object
>
nowDataMap
=
new
HashMap
<
String
,
Object
>();
nowDataMap
.
put
(
REPEAT_PARAMS
,
nowParams
);
nowDataMap
.
put
(
REPEAT_TIME
,
System
.
currentTimeMillis
());
// 请求地址(作为存放session的key值)
String
url
=
request
.
getRequestURI
();
HttpSession
session
=
request
.
getSession
();
Object
sessionObj
=
session
.
getAttribute
(
SESSION_REPEAT_KEY
);
if
(
sessionObj
!=
null
)
{
Map
<
String
,
Object
>
sessionMap
=
(
Map
<
String
,
Object
>)
sessionObj
;
if
(
sessionMap
.
containsKey
(
url
))
{
Map
<
String
,
Object
>
preDataMap
=
(
Map
<
String
,
Object
>)
sessionMap
.
get
(
url
);
if
(
compareParams
(
nowDataMap
,
preDataMap
)
&&
compareTime
(
nowDataMap
,
preDataMap
))
{
return
true
;
}
}
}
Map
<
String
,
Object
>
sessionMap
=
new
HashMap
<
String
,
Object
>();
sessionMap
.
put
(
url
,
nowDataMap
);
session
.
setAttribute
(
SESSION_REPEAT_KEY
,
sessionMap
);
return
false
;
}
/**
* 判断参数是否相同
*/
private
boolean
compareParams
(
Map
<
String
,
Object
>
nowMap
,
Map
<
String
,
Object
>
preMap
)
{
String
nowParams
=
(
String
)
nowMap
.
get
(
REPEAT_PARAMS
);
String
preParams
=
(
String
)
preMap
.
get
(
REPEAT_PARAMS
);
return
nowParams
.
equals
(
preParams
);
}
/**
* 判断两次间隔时间
*/
private
boolean
compareTime
(
Map
<
String
,
Object
>
nowMap
,
Map
<
String
,
Object
>
preMap
)
{
long
time1
=
(
Long
)
nowMap
.
get
(
REPEAT_TIME
);
long
time2
=
(
Long
)
preMap
.
get
(
REPEAT_TIME
);
if
((
time1
-
time2
)
<
(
this
.
intervalTime
*
1000
))
{
return
true
;
}
return
false
;
}
}
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