SNMP4j实现同步和异步的GET的示例
目录：
- 环境参数
- 代码示例
- 同步GET 单个OID
- 同步GET 多个OID
- 异步GET
[一]、环境参数
- jdk 1.6.0_18
- snmp4j 1.11.3
[二]、代码示例
1.同步GET 单个OID（v2c）
代码：SnmpGet.java
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package
com
.
micmiu
.
snmp4j
.
demo1x
;
import
java
.
io
.
IOException
;
import
org
.
snmp4j
.
CommunityTarget
;
import
org
.
snmp4j
.
PDU
;
import
org
.
snmp4j
.
Snmp
;
import
org
.
snmp4j
.
event
.
ResponseEvent
;
import
org
.
snmp4j
.
mp
.
SnmpConstants
;
import
org
.
snmp4j
.
smi
.
Address
;
import
org
.
snmp4j
.
smi
.
GenericAddress
;
import
org
.
snmp4j
.
smi
.
OID
;
import
org
.
snmp4j
.
smi
.
OctetString
;
import
org
.
snmp4j
.
smi
.
VariableBinding
;
import
org
.
snmp4j
.
transport
.
DefaultUdpTransportMapping
;
/**
* 演示： GET单个OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*/
public
class
SnmpGet
{
public
static
final
int
DEFAULT_VERSION
=
SnmpConstants
.
version2c
;
public
static
final
String
DEFAULT_PROTOCOL
=
"udp"
;
public
static
final
int
DEFAULT_PORT
=
161
;
public
static
final
long
DEFAULT_TIMEOUT
=
3
*
1000L
;
public
static
final
int
DEFAULT_RETRY
=
3
;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public
static
CommunityTarget
createDefault
(
String
ip
,
String
community
)
{
Address
address
=
GenericAddress
.
parse
(
DEFAULT_PROTOCOL
+
":"
+
ip
+
"/"
+
DEFAULT_PORT
)
;
CommunityTarget
target
=
new
CommunityTarget
(
)
;
target
.
setCommunity
(
new
OctetString
(
community
)
)
;
target
.
setAddress
(
address
)
;
target
.
setVersion
(
DEFAULT_VERSION
)
;
target
.
setTimeout
(
DEFAULT_TIMEOUT
)
;
// milliseconds
target
.
setRetries
(
DEFAULT_RETRY
)
;
return
target
;
}
public
static
void
snmpGet
(
String
ip
,
String
community
,
String
oid
)
{
CommunityTarget
target
=
createDefault
(
ip
,
community
)
;
Snmp
snmp
=
null
;
try
{
PDU
pdu
=
new
PDU
(
)
;
// pdu.add(new VariableBinding(new OID(new int[]
// {1,3,6,1,2,1,1,2})));
pdu
.
add
(
new
VariableBinding
(
new
OID
(
oid
)
)
)
;
DefaultUdpTransportMapping
transport
=
new
DefaultUdpTransportMapping
(
)
;
snmp
=
new
Snmp
(
transport
)
;
snmp
.
listen
(
)
;
System
.
out
.
println
(
"-------> 发送PDU <-------"
)
;
pdu
.
setType
(
PDU
.
GET
)
;
ResponseEvent
respEvent
=
snmp
.
send
(
pdu
,
target
)
;
System
.
out
.
println
(
"PeerAddress:"
+
respEvent
.
getPeerAddress
(
)
)
;
PDU
response
=
respEvent
.
getResponse
(
)
;
if
(
response
==
null
)
{
System
.
out
.
println
(
"response is null, request time out"
)
;
}
else
{
// Vector<VariableBinding> vbVect =
// response.getVariableBindings();
// System.out.println("vb size:" + vbVect.size());
// if (vbVect.size() == 0) {
// System.out.println("response vb size is 0 ");
// } else {
// VariableBinding vb = vbVect.firstElement();
// System.out.println(vb.getOid() + " = " + vb.getVariable());
// }
System
.
out
.
println
(
"response pdu size is "
+
response
.
size
(
)
)
;
for
(
int
i
=
0
;
i
&
lt
;
response
.
size
(
)
;
i
++
)
{
VariableBinding
vb
=
response
.
get
(
i
)
;
System
.
out
.
println
(
vb
.
getOid
(
)
+
" = "
+
vb
.
getVariable
(
)
)
;
}
}
System
.
out
.
println
(
"SNMP GET one OID value finished !"
)
;
}
catch
(
Exception
e
)
{
e
.
printStackTrace
(
)
;
System
.
out
.
println
(
"SNMP Get Exception:"
+
e
)
;
}
finally
{
if
(
snmp
!=
null
)
{
try
{
snmp
.
close
(
)
;
}
catch
(
IOException
ex1
)
{
snmp
=
null
;
}
}
}
}
/**
*
* @param args
*/
public
static
void
main
(
String
[
]
args
)
{
String
ip
=
"192.168.8.254"
;
String
community
=
"public"
;
String
oidval
=
"1.3.6.1.2.1.1.1.0"
;
SnmpGet
.
snmpGet
(
ip
,
community
,
oidval
)
;
}
}
|
运行结果：
|
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5
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7
8
9
|
--
--
--
-
&
gt
;
发送
PDU
&
lt
;
--
--
--
-
PeerAddress
:
192.168.8.254
/
161
response
pdu
size
is
1
1.3.6.1.2.1.1.1.0
=
H3C
ICG2000
H3C
Comware
Platform
Software
Comware
Software
Version
5.20
,
Release
2104P02
Copyright
(
c
)
2004
-
2010
Hangzhou
H3C
Technologies
Co
.
,
Ltd
.
SNMP
GET
one
OID
value
finished
!
|
2.同步GET 多个OID（v2c）
代码：SnmpGetList.java
|
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|
package
com
.
micmiu
.
snmp4j
.
demo1x
;
import
java
.
io
.
IOException
;
import
java
.
util
.
ArrayList
;
import
java
.
util
.
List
;
import
org
.
snmp4j
.
CommunityTarget
;
import
org
.
snmp4j
.
PDU
;
import
org
.
snmp4j
.
Snmp
;
import
org
.
snmp4j
.
event
.
ResponseEvent
;
import
org
.
snmp4j
.
mp
.
SnmpConstants
;
import
org
.
snmp4j
.
smi
.
Address
;
import
org
.
snmp4j
.
smi
.
GenericAddress
;
import
org
.
snmp4j
.
smi
.
OID
;
import
org
.
snmp4j
.
smi
.
OctetString
;
import
org
.
snmp4j
.
smi
.
VariableBinding
;
import
org
.
snmp4j
.
transport
.
DefaultUdpTransportMapping
;
/**
* 演示：GET 多个OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*
*/
public
class
SnmpGetList
{
public
static
final
int
DEFAULT_VERSION
=
SnmpConstants
.
version2c
;
public
static
final
String
DEFAULT_PROTOCOL
=
"udp"
;
public
static
final
int
DEFAULT_PORT
=
161
;
public
static
final
long
DEFAULT_TIMEOUT
=
3
*
1000L
;
public
static
final
int
DEFAULT_RETRY
=
3
;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public
static
CommunityTarget
createDefault
(
String
ip
,
String
community
)
{
Address
address
=
GenericAddress
.
parse
(
DEFAULT_PROTOCOL
+
":"
+
ip
+
"/"
+
DEFAULT_PORT
)
;
CommunityTarget
target
=
new
CommunityTarget
(
)
;
target
.
setCommunity
(
new
OctetString
(
community
)
)
;
target
.
setAddress
(
address
)
;
target
.
setVersion
(
DEFAULT_VERSION
)
;
target
.
setTimeout
(
DEFAULT_TIMEOUT
)
;
// milliseconds
target
.
setRetries
(
DEFAULT_RETRY
)
;
return
target
;
}
/**
*
* @param ip
* @param community
* @param oid
*/
public
static
void
snmpGetList
(
String
ip
,
String
community
,
List
&
lt
;
String
&
gt
;
oidList
)
{
CommunityTarget
target
=
SnmpUtil
.
createDefault
(
ip
,
community
)
;
Snmp
snmp
=
null
;
try
{
PDU
pdu
=
new
PDU
(
)
;
for
(
String
oid
:
oidList
)
{
pdu
.
add
(
new
VariableBinding
(
new
OID
(
oid
)
)
)
;
}
DefaultUdpTransportMapping
transport
=
new
DefaultUdpTransportMapping
(
)
;
transport
.
listen
(
)
;
snmp
=
new
Snmp
(
transport
)
;
System
.
out
.
println
(
"------->发送消息<-------"
)
;
pdu
.
setType
(
PDU
.
GET
)
;
ResponseEvent
respEvent
=
snmp
.
send
(
pdu
,
target
)
;
System
.
out
.
println
(
"PeerAddress:"
+
respEvent
.
getPeerAddress
(
)
)
;
PDU
response
=
respEvent
.
getResponse
(
)
;
if
(
response
==
null
)
{
System
.
out
.
println
(
"response is null, request time out"
)
;
}
else
{
System
.
out
.
println
(
"response pdu size is "
+
response
.
size
(
)
)
;
for
(
int
i
=
0
;
i
&
lt
;
response
.
size
(
)
;
i
++
)
{
VariableBinding
vb
=
response
.
get
(
i
)
;
System
.
out
.
println
(
vb
.
getOid
(
)
+
" = "
+
vb
.
getVariable
(
)
)
;
}
}
System
.
out
.
println
(
"SNMP GET List OID value finished !"
)
;
}
catch
(
Exception
e
)
{
e
.
printStackTrace
(
)
;
System
.
out
.
println
(
"SNMP GetList Exception:"
+
e
)
;
}
finally
{
if
(
snmp
!=
null
)
{
try
{
snmp
.
close
(
)
;
}
catch
(
IOException
ex1
)
{
snmp
=
null
;
}
}
}
}
/**
*
* @param args
*/
public
static
void
main
(
String
[
]
args
)
{
String
ip
=
"192.168.8.254"
;
String
community
=
"public"
;
List
&
lt
;
String
&
gt
;
oidList
=
new
ArrayList
&
lt
;
String
&
gt
;
(
)
;
oidList
.
add
(
".1.3.6.1.2.1.1.1.0"
)
;
oidList
.
add
(
".1.3.6.1.2.1.1.3.0"
)
;
oidList
.
add
(
".1.3.6.1.2.1.1.5.0"
)
;
SnmpGetList
.
snmpGetList
(
ip
,
community
,
oidList
)
;
}
}
|
运行结果：
|
1
2
3
4
5
6
7
8
9
10
11
|
--
--
--
-
&
gt
;发送消息
&
lt
;
--
--
--
-
PeerAddress
:
192.168.8.254
/
161
response
pdu
size
is
3
1.3.6.1.2.1.1.1.0
=
H3C
ICG2000
H3C
Comware
Platform
Software
Comware
Software
Version
5.20
,
Release
2104P02
Copyright
(
c
)
2004
-
2010
Hangzhou
H3C
Technologies
Co
.
,
Ltd
.
1.3.6.1.2.1.1.3.0
=
39
days
,
21
:
25
:
37.36
1.3.6.1.2.1.1.5.0
=
HX_ICG2000
SNMP
GET
List
OID
value
finished
!
|
3.异步GET （v2c）
代码：SnmpGetAsyn.java
|
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2
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31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
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|
package
com
.
micmiu
.
snmp4j
.
demo1x
;
import
java
.
util
.
ArrayList
;
import
java
.
util
.
List
;
import
java
.
util
.
concurrent
.
CountDownLatch
;
import
java
.
util
.
concurrent
.
TimeUnit
;
import
org
.
snmp4j
.
CommunityTarget
;
import
org
.
snmp4j
.
PDU
;
import
org
.
snmp4j
.
Snmp
;
import
org
.
snmp4j
.
event
.
ResponseEvent
;
import
org
.
snmp4j
.
event
.
ResponseListener
;
import
org
.
snmp4j
.
mp
.
SnmpConstants
;
import
org
.
snmp4j
.
smi
.
Address
;
import
org
.
snmp4j
.
smi
.
GenericAddress
;
import
org
.
snmp4j
.
smi
.
OID
;
import
org
.
snmp4j
.
smi
.
OctetString
;
import
org
.
snmp4j
.
smi
.
VariableBinding
;
import
org
.
snmp4j
.
transport
.
DefaultUdpTransportMapping
;
/**
* 演示：异步GET OID值
*
* blog http://www.micmiu.com
*
* @author Michael
*
*/
public
class
SnmpGetAsyn
{
public
static
final
int
DEFAULT_VERSION
=
SnmpConstants
.
version2c
;
public
static
final
String
DEFAULT_PROTOCOL
=
"udp"
;
public
static
final
int
DEFAULT_PORT
=
161
;
public
static
final
long
DEFAULT_TIMEOUT
=
3
*
1000L
;
public
static
final
int
DEFAULT_RETRY
=
3
;
/**
* 创建对象communityTarget
*
* @param targetAddress
* @param community
* @param version
* @param timeOut
* @param retry
* @return CommunityTarget
*/
public
static
CommunityTarget
createDefault
(
String
ip
,
String
community
)
{
Address
address
=
GenericAddress
.
parse
(
DEFAULT_PROTOCOL
+
":"
+
ip
+
"/"
+
DEFAULT_PORT
)
;
CommunityTarget
target
=
new
CommunityTarget
(
)
;
target
.
setCommunity
(
new
OctetString
(
community
)
)
;
|