/**
* created by guanjian on 2020/11/30 19:58
*/@documented
@retention
(retentionpolicy.runtime)
@target
(elementtype.method)
public @inte***ce
spel
/**
* created by guanjian on 2020/11/30 20:00
*/@aspect
@component
("spelaspect"
)public
class
spelaspect
system.out.
println
("map= "
+ map)
;//2、獲取到方法形參
string[
] params = discoverer.
getparameternames
(getmethod
(pjp));
system.out.
println
("形參param= "
+ json.
tojsonstring
(params));
//3、獲取到方法實參
object[
] args =
getargs
(pjp)
; system.out.
println
("實參args= "
+ json.
tojsonstring
(args));
//4、構建spel的context
evaluationcontext context =
newstandardevaluationcontext()
;for
(int index =
0; index < params.length; index++
)//5、遍歷map=，把對應的value的形參賦值成實參值
map.
foreach
((k, spel)
->);
/** * 解析string型別
*/string bizid =
getannotation
(pjp)
.bizid()
; system.out.
println
("bizid= "
+ parser.
parseexpression
(bizid)
.getvalue
(context, string.
class))
;//target method execute...
object result = null;
trycatch
(throwable e)
finally
}protected method getmethod
(proceedingjoinpoint pjp)
catch
(nosuchmethodexception e)
return method;
}protected object[
]getargs
(proceedingjoinpoint pjp)
protected
static spel getannotation
(proceedingjoinpoint pjp)
catch
(exception e)
return
(spel) annotation;
}}
/**
* created by guanjian on 2020/11/30 20:13
*/@component
("spelservice"
)public
class
spelservice",
bizid =
"#req.bizid"
, operation = operation.start
)public object test
(user req)
}
@runwith
(springjunit4classrunner.
class
)@contextconfiguration
("/spring-config.xml"
)public
class
speltest
}控制台列印輸出
variables=
map=
形參param=
["req"
]實參args=
key=name,spel=#req.name,value=zhangsan
key=age,spel=#req.age,value=
10bizid=
12312212521512
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