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体验新版 GitCode,发现更多精彩内容 >>
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4add69ad
编写于
1月 06, 2011
作者:
K
Kohsuke Kawaguchi
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差异文件
adding a convenience class to handle query parameters in response to HUDSON-8056.
上级
0bbd8666
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1
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1 changed file
with
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core/src/main/java/hudson/util/QueryParameterMap.java
core/src/main/java/hudson/util/QueryParameterMap.java
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core/src/main/java/hudson/util/QueryParameterMap.java
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/*
* The MIT License
*
* Copyright (c) 2011, CloudBees, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package
hudson.util
;
import
javax.servlet.http.HttpServletRequest
;
import
java.io.UnsupportedEncodingException
;
import
java.net.URLDecoder
;
import
java.util.ArrayList
;
import
java.util.Collections
;
import
java.util.HashMap
;
import
java.util.List
;
import
java.util.Map
;
/**
* Parses the query string of the URL into a key/value pair.
*
* <p>
* This class is even useful on the server side, as {@link HttpServletRequest#getParameter(String)}
* can try to parse into the payload (and that can cause an exception if the payload is already consumed.
* See HUDSON-8056.)
*
* <p>
* So if you are handling the payload yourself and only want to access the query parameters,
* use this class.
*
* @author Kohsuke Kawaguchi
* @since 1.394
*/
public
class
QueryParameterMap
{
private
final
Map
<
String
,
List
<
String
>>
store
=
new
HashMap
<
String
,
List
<
String
>>();
/**
* @param queryString
* String that looks like "abc=def&ghi=jkl"
*/
public
QueryParameterMap
(
String
queryString
)
{
if
(
queryString
==
null
||
queryString
.
length
()==
0
)
return
;
try
{
for
(
String
param
:
queryString
.
split
(
"&"
))
{
String
[]
kv
=
param
.
split
(
"="
);
String
key
=
URLDecoder
.
decode
(
kv
[
0
],
"UTF-8"
);
String
value
=
URLDecoder
.
decode
(
kv
[
1
],
"UTF-8"
);
List
<
String
>
values
=
store
.
get
(
key
);
if
(
values
==
null
)
store
.
put
(
key
,
values
=
new
ArrayList
<
String
>());
values
.
add
(
value
);
}
}
catch
(
UnsupportedEncodingException
e
)
{
throw
new
AssertionError
(
e
);
}
}
public
QueryParameterMap
(
HttpServletRequest
req
)
{
this
(
req
.
getQueryString
());
}
public
String
get
(
String
name
)
{
List
<
String
>
v
=
store
.
get
(
name
);
return
v
!=
null
?
v
.
get
(
0
):
null
;
}
public
List
<
String
>
getAll
(
String
name
)
{
List
<
String
>
v
=
store
.
get
(
name
);
return
v
!=
null
?
Collections
.
unmodifiableList
(
v
)
:
Collections
.<
String
>
emptyList
();
}
}
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