基于java的libvirt接口

准备：

1.确保你的linux平台搭建了kvm环境

2.下载libvirt-java-0.4.7.tar.gz  官方网站：http://libvirt.org/sources/java/

3.打开eclipse，新建工程，导入libvirt包

开发：

1.根据xml配置文件创建虚拟机

1. public class Test {
3.     /**
   
4.      * @param args
5.      */
6.     public static void main(String[] args) {
7.         Connect conn = null;
8.         int flags = 0;
10.         try {
11.             
12.             
13.             conn = new Connect("qemu:///system", false);
15.             String dumpxml = "<domain type='kvm'>"+
16.              "<name>tt2</name>"+
17.              "<memory>524288</memory>"+
18.              "<currentMemory>524288</currentMemory>"+
19.              "<vcpu>1</vcpu>"+
20.              "<os>"+
21.              " <type arch='i686' machine='pc-0.11'>hvm</type>"+
22.              " <boot dev='hd'/>"+
23.              "</os>"+
24.              "<features>"+
25.              " <acpi/>"+
26.              " <apic/>"+
27.              " <pae/>"+
28.              "</features>"+
29.              "<clock offset='utc'/>"+
30.              "<on_poweroff>destroy</on_poweroff>"+
31.              "<on_reboot>restart</on_reboot>"+
32.              "<on_crash>restart</on_crash>"+
33.              "<devices>"+
34.              " <emulator>/usr/bin/qemu-kvm</emulator>"+
35.              " <disk type='file' device='disk'>"+
36.              " <driver name='qemu' cache='none'/>"+
37.              " <source file='/var/lib/libvirt/images/tt.img'/>"+
38.              " <target dev='hda' bus='ide'/>"+
39.              " </disk>"+
40.              " <interface type='network'>"+
41.              " <mac address='54:52:00:02:02:2c'/>"+
42.              " <source network='default'/>"+
43.              " </interface>"+
44.              " <serial type='pty'>"+
45.              " <target port='0'/>"+
46.              " </serial>"+
47.              " <console type='pty'>"+
48.              " <target port='0'/>"+
49.              " </console>"+
50.              " <input type='mouse' bus='ps2'/>"+
51.              " <graphics type='vnc' port='-1' autoport='yes' keymap='en-us'/>"+
52.              "</devices>"+
53.             "</domain>";
54.             
55.             
56.             Domain dm = null;
57.             
58.             Domain dm1 = conn.domainDefineXML(dumpxml);
59.             //Domain dm1 = conn.domainDefineXML(dumpxml); //创建一个域，但不启动
    
61.             //dm1.undefine(); //undefind一个域，如果活动，则不停止
    
64.             /****
    
65.             try{
66.                 Domain dm1 =conn.domainLookupByName("tt2");
67.             }
68.             catch (LibvirtException e) {
69.                 System.out.println("libvirt 错误" + e);
70.                 // TODO: handle exception
71.             }
72.             if(dm!=null)
73.             {
74.                 
75.                 dm.undefine();
76.                 
77.             }
78.             ****/
79.         
80.             /********
    
81.             Domain dm2 = conn.domainDefineXML(dumpxml);
82.             dm2.undefine();
83.             *******/
84.                         
85.         } catch (LibvirtException e) { //LibvirtException 返回错误详细信息
    
87.             System.out.println("exception caught:" + e);
88.             System.out.println("获取的错误;" + e.getError()); 
90.             return;
91.         }
92.         
93.         System.out.println("Clean exit");
95.     }
97. }

2 libvirt库函数说明

 

（1）

1. conn = new Connect("qemu:///system",true)

1. conn = new Connect("qemu:///system",false)

第一个是以只读的方式打开连接

第二个可以对domain进行写操作

（2）

1. Domain dm1 = conn.domainDefineXML(dumpxml);

创建一个域， 但不启动

 

（3）

 

1. dm1.undefine();

undefind一个域，如果活动，则不停止

 

3.官方API文档：http://libvirt.org/sources/java/javadoc/

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