/**
* HTTP通信类
* @ClassName: HttpConnection
* @Description: TODO
* @author liuct
* @date 2015年04月18日
*
*/
@Component
public
class
HttpConnection
{
/**
* 向指定URL发送GET方法的请求
* @param url 发送请求的URL
* @param param 请求参数，请求参数应该是name1=value1&name2=value2的形式。
* @return URL所代表远程资源的响应
*/
public
String
get
(
String
url
,
String
param
)
throws
Exception
{
String
urlName
=
url
+
"?"
+
param
;
return
get
(
urlName
);
}
/**
* 向指定URL发送GET方法的请求
*
* @param url
* 发送请求的URL
* @return URL所代表远程资源的响应
*/
public
String
get
(
String
url
)
throws
Exception
{
String
result
=
""
;
BufferedReader
in
=
null
;
URL
realUrl
=
new
URL
(
url
);
URLConnection
conn
=
realUrl
.
openConnection
();
conn
.
setRequestProperty
(
"accept"
,
"*/*"
);
conn
.
setRequestProperty
(
"Accept-Language"
,
"zh-CN,zh;q=0.8"
);
conn
.
setRequestProperty
(
"Content-Type"
,
"text/xml;charset=utf-8"
);
conn
.
setRequestProperty
(
"connection"
,
"keep-alive"
);
conn
.
setRequestProperty
(
"user-agent"
,
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)"
);
// 建立实际的连接
conn
.
connect
();
// 定义BufferedReader输入流来读取URL的响应
in
=
new
BufferedReader
(
new
InputStreamReader
(
conn
.
getInputStream
(),
"UTF-8"
));
String
line
;
while
((
line
=
in
.
readLine
())
!=
null
)
{
result
+=
line
;
}
in
.
close
();
return
result
;
}
/**
* 向指定URL发送POST方法的请求
* @param url 发送请求的URL
* @param content 内容
* @return URL所代表远程资源的响应
* @throws Exception
*/
public
String
post
(
String
url
,
String
content
)
throws
Exception
{
String
result
=
""
;
URL
postUrl
=
new
URL
(
url
);
HttpURLConnection
connection
=
(
HttpURLConnection
)
postUrl
.
openConnection
();
connection
.
setDoOutput
(
true
);
connection
.
setDoInput
(
true
);
connection
.
setRequestMethod
(
"POST"
);
connection
.
setUseCaches
(
false
);
connection
.
setInstanceFollowRedirects
(
true
);
connection
.
setRequestProperty
(
"Content-Type"
,
"application/x-www-form-urlencoded"
);
connection
.
connect
();
DataOutputStream
out
=
new
DataOutputStream
(
connection
.
getOutputStream
());
// out.writeBytes(content);
out
.
write
(
content
.
getBytes
(
"UTF-8"
));
out
.
flush
();
out
.
close
();
// flush and close
BufferedReader
reader
=
new
BufferedReader
(
new
InputStreamReader
(
connection
.
getInputStream
(),
"utf-8"
));
//设置编码,否则中文乱码
String
line
=
""
;
while
((
line
=
reader
.
readLine
())
!=
null
){
result
+=
line
;
}
reader
.
close
();
connection
.
disconnect
();
return
result
;
}
/**
* 向指定URL发送POST方法的请求
* @Title: post
* @Description: TODO
* @param @param url
* @param @param textMap
* @param @return
* @return String
* @throws
*/
public
String
post
(
String
url
,
Map
<
String
,
String
>
textMap
){
String
res
=
""
;
HttpURLConnection
conn
=
null
;
String
BOUNDARY
=
"---------------------------123821742118716"
;
//boundary就是request头和上传文件内容的分隔符
try
{
URL
postUrl
=
new
URL
(
url
);
conn
=
(
HttpURLConnection
)
postUrl
.
openConnection
();
conn
.
setConnectTimeout
(
5000
);
conn
.
setReadTimeout
(
30000
);
conn
.
setDoOutput
(
true
);
conn
.
setDoInput
(
true
);
conn
.
setUseCaches
(
false
);
conn
.
setRequestMethod
(
"POST"
);
conn
.
setRequestProperty
(
"Connection"
,
"Keep-Alive"
);
conn
.
setRequestProperty
(
"User-Agent"
,
"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)"
);
conn
.
setRequestProperty
(
"Content-Type"
,
"multipart/form-data; boundary="
+
BOUNDARY
);
OutputStream
out
=
new
DataOutputStream
(
conn
.
getOutputStream
());
// text
if
(
textMap
!=
null
)
{
StringBuffer
strBuf
=
new
StringBuffer
();
Iterator
iter
=
textMap
.
entrySet
().
iterator
();
while
(
iter
.
hasNext
())
{
Map
.
Entry
entry
=
(
Map
.
Entry
)
iter
.
next
();
String
inputName
=
(
String
)
entry
.
getKey
();
String
inputValue
=
(
String
)
entry
.
getValue
();
if
(
inputValue
==
null
)
{
continue
;
}
strBuf
.
append
(
"\r\n"
).
append
(
"--"
).
append
(
BOUNDARY
).
append
(
"\r\n"
);
strBuf
.
append
(
"Content-Disposition: form-data; name=\""
+
inputName
+
"\"\r\n\r\n"
);
strBuf
.
append
(
inputValue
);
}
out
.
write
(
strBuf
.
toString
().
getBytes
());
}
byte
[]
endData
=
(
"\r\n--"
+
BOUNDARY
+
"--\r\n"
).
getBytes
();
out
.
write
(
endData
);
out
.
flush
();
out
.
close
();
// 读取返回数据
StringBuffer
strBuf
=
new
StringBuffer
();
BufferedReader
reader
=
new
BufferedReader
(
new
InputStreamReader
(
conn
.
getInputStream
()));
String
line
=
null
;
while
((
line
=
reader
.
readLine
())
!=
null
)
{
strBuf
.
append
(
line
).
append
(
"\n"
);
}
res
=
strBuf
.
toString
();
reader
.
close
();
reader
=
null
;
}
catch
(
Exception
e
)
{
System
.
out
.
println
(
"发送POST请求出错。"
+
url
);
e
.
printStackTrace
();
}
finally
{
if
(
conn
!=
null
)
{
conn
.
disconnect
();
conn
=
null
;
}
}
return
res
;
}
/**
* 向指定URL发送POST方法的请求 （带文件）
* @param url 发送请求的URL
* @param textMap 文本参数键值
* @param fileMap 文件键值
* @return URL所代表远程资源的响应
* @throws Exception
*/
public
String
filePost
(
String
url
,
Map
<
String
,
String
>
textMap
,
Map
<
String
,
String
>
fileMap
)
{
String
res
=
""
;
HttpURLConnection
conn
=
null
;
String
BOUNDARY
=
"---------------------------123821742118716"
;
//boundary就是request头和上传文件内容的分隔符
try
{
URL
postUrl
=
new
URL
(
url
);
conn
=
(
HttpURLConnection
)
postUrl
.
openConnection
();
conn
.
setConnectTimeout
(
5000
);
conn
.
setReadTimeout
(
30000
);
conn
.
setDoOutput
(
true
);
conn
.
setDoInput
(
true
);
conn
.
setUseCaches
(
false
);
conn
.
setRequestMethod
(
"POST"
);
conn
.
setRequestProperty
(
"Connection"
,
"Keep-Alive"
);
conn
.
setRequestProperty
(
"User-Agent"
,
"Mozilla/5.0 (Windows; U; Windows NT 6.1; zh-CN; rv:1.9.2.6)"
);
conn
.
setRequestProperty
(
"Content-Type"
,
"multipart/form-data; boundary="
+
BOUNDARY
);
OutputStream
out
=
new
DataOutputStream
(
conn
.
getOutputStream
());
// text
if
(
textMap
!=
null
)
{
StringBuffer
strBuf
=
new
StringBuffer
();
Iterator
iter
=
textMap
.
entrySet
().
iterator
();
while
(
iter
.
hasNext
())
{
Map
.
Entry
entry
=
(
Map
.
Entry
)
iter
.
next
();
String
inputName
=
(
String
)
entry
.
getKey
();
String
inputValue
=
(
String
)
entry
.
getValue
();
if
(
inputValue
==
null
)
{
continue
;
}
strBuf
.
append
(
"\r\n"
).
append
(
"--"
).
append
(
BOUNDARY
).
append
(
"\r\n"
);
strBuf
.
append
(
"Content-Disposition: form-data; name=\""
+
inputName
+
"\"\r\n\r\n"
);
strBuf
.
append
(
inputValue
);
}
out
.
write
(
strBuf
.
toString
().
getBytes
());
}
// file
if
(
fileMap
!=
null
)
{
Iterator
iter
=
fileMap
.
entrySet
().
iterator
();
while
(
iter
.
hasNext
())
{
Map
.
Entry
entry
=
(
Map
.
Entry
)
iter
.
next
();
String
inputName
=
(
String
)
entry
.
getKey
();
String
inputValue
=
(
String
)
entry
.
getValue
();
if
(
inputValue
==
null
)
{
continue
;
}
File
file
=
new
File
(
inputValue
);
String
filename
=
file
.
getName
();
String
contentType
=
new
MimetypesFileTypeMap
()
.
getContentType
(
file
);
if
(
filename
.
endsWith
(
".png"
))
{
contentType
=
"image/png"
;
}
if
(
contentType
==
null
||
contentType
.
equals
(
""
))
{
contentType
=
"application/octet-stream"
;
}
StringBuffer
strBuf
=
new
StringBuffer
();
strBuf
.
append
(
"\r\n"
).
append
(
"--"
).
append
(
BOUNDARY
).
append
(
"\r\n"
);
strBuf
.
append
(
"Content-Disposition: form-data; name=\""
+
inputName
+
"\"; filename=\""
+
filename
+
"\"\r\n"
);
strBuf
.
append
(
"Content-Type:"
+
contentType
+
"\r\n\r\n"
);
out
.
write
(
strBuf
.
toString
().
getBytes
());
DataInputStream
in
=
new
DataInputStream
(
new
FileInputStream
(
file
));
int
bytes
=
0
;
byte
[]
bufferOut
=
new
byte
[
1024
];
while
((
bytes
=
in
.
read
(
bufferOut
))
!=
-
1
)
{
out
.
write
(
bufferOut
,
0
,
bytes
);
}
in
.
close
();
}
}
byte
[]
endData
=
(
"\r\n--"
+
BOUNDARY
+
"--\r\n"
).
getBytes
();
out
.
write
(
endData
);
out
.
flush
();
out
.
close
();
// 读取返回数据
StringBuffer
strBuf
=
new
StringBuffer
();
BufferedReader
reader
=
new
BufferedReader
(
new
InputStreamReader
(
conn
.
getInputStream
()));
String
line
=
null
;
while
((
line
=
reader
.
readLine
())
!=
null
)
{
strBuf
.
append
(
line
).
append
(
"\n"
);
}
res
=
strBuf
.
toString
();
reader
.
close
();
reader
=
null
;
}
catch
(
Exception
e
)
{
System
.
out
.
println
(
"发送POST请求出错。"
+
url
);
e
.
printStackTrace
();
}
finally
{
if
(
conn
!=
null
)
{
conn
.
disconnect
();
conn
=
null
;
}
}
return
res
;
}
}
