EL表示式的判斷

2021-07-03 16:47:41 字數 2097 閱讀 4238

el的判斷

html** 

<

c:if

test

="$"

>

currentroleid為空 

c:if

>

<

c:if

test

="$"

>

currentroleid不為空 

c:if

>

<

c:if

test

=>

currentroleid和sysadmin相等 

c:if

>

<

c:if

test

=>

currentroleid和sysadmin不相等 

c:if

>$ 

[html]view plain

copy

print?

<

c:if

test

="$"

>

currentroleid為空  

c:if

>

<

c:if

test

="$"

>

currentroleid不為空  

c:if

>

<

c:if

test

=>

currentroleid和sysadmin相等  

c:if

>

<

c:if

test

=>

currentroleid和sysadmin不相等  

c:if

>

$  

el的判斷

html** 

<

c:if

test

="$"

>

currentroleid為空 

c:if

>

<

c:if

test

="$"

>

currentroleid不為空 

c:if

>

<

c:if

test

=>

currentroleid和sysadmin相等 

c:if

>

<

c:if

test

=>

currentroleid和sysadmin不相等 

c:if

>$ 

[html]view plain

copy

print?

<

c:if

test

="$"

>

currentroleid為空  

c:if

>

<

c:if

test

="$"

>

currentroleid不為空  

c:if

>

<

c:if

test

=>

currentroleid和sysadmin相等  

c:if

>

<

c:if

test

=>

currentroleid和sysadmin不相等  

c:if

>

$  

示例:spring mvc伺服器端:

string rolename = adminroleservice.getrolenamebyadminid(administer.getid().longvalue());

string customerman = "客戶經理";

model.addattribute("rolename",rolename);

model.addattribute("customerman",customerman);

jsp頁面客戶端:

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