- 说白了就是java序列化技术，一是为了网络传输，二是为了对象持久化，虽然我们可以用java对对象进行序列化，用netty去传输，但是java的序列化硬伤太多，比如没法跨语言，序列化后码流太大，序列化性能太低等等
- 主流的编解码框架
- JBoss的marshalling包
- Google的Protobuf
- 基于protobuf的Kyro
- MessagePack框架
- marshalling框架对java默认的序列化框架进行了优化，同时保持跟java.io.Serializable接口的兼容，同时增加了一些可调的参数和附加特性
- Reqeust对象，实现Serializable接口，当client和server位于不同的服务中时，注意服务器端对象和客户端对象包名，类名一致（非常重要）
import java.io.Serializable;
public class Request implements Serializable{
private static final long SerialVersionUID = 1L;
private String id ;
private String name ;
private String requestMessage ;
private byte[] attchement;//附件
public byte[] getAttchement() {
return attchement;
}
public void setAttchement(byte[] attchement) {
this.attchement = attchement;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRequestMessage() {
return requestMessage;
}
public void setRequestMessage(String requestMessage) {
this.requestMessage = requestMessage;
}
}
- Response对象，实现Serializable接口，当client和server位于不同的服务中时，注意服务器端对象和客户端对象包名，类名一致（非常重要）
import java.io.Serializable;
public class Response implements Serializable{
private static final long serialVersionUID = 1L;
private String id;
private String name;
private String responseMessage;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getResponseMessage() {
return responseMessage;
}
public void setResponseMessage(String responseMessage) {
this.responseMessage = responseMessage;
}
}
- Marshalling编解码器
import io.netty.handler.codec.marshalling.DefaultMarshallerProvider;
import io.netty.handler.codec.marshalling.DefaultUnmarshallerProvider;
import io.netty.handler.codec.marshalling.MarshallerProvider;
import io.netty.handler.codec.marshalling.MarshallingDecoder;
import io.netty.handler.codec.marshalling.MarshallingEncoder;
import io.netty.handler.codec.marshalling.UnmarshallerProvider;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.marshalling.Marshalling;
import org.jboss.marshalling.MarshallingConfiguration;
/**
* Marshalling工厂
* @author（alienware）
* @since 2014-12-16
*/
public final class MarshallingCodeCFactory {
/**
* 创建Jboss Marshalling解码器MarshallingDecoder
* @return MarshallingDecoder
*/
public static MarshallingDecoder buildMarshallingDecoder() {
//首先通过Marshalling工具类的精通方法获取Marshalling实例对象 参数serial标识创建的是java序列化工厂对象。
final MarshallerFactory marshallerFactory = Marshalling.getProvidedMarshallerFactory("serial");
//创建了MarshallingConfiguration对象，配置了版本号为5
final MarshallingConfiguration configuration = new MarshallingConfiguration();
configuration.setVersion(5);
//根据marshallerFactory和configuration创建provider
UnmarshallerProvider provider = new DefaultUnmarshallerProvider(marshallerFactory, configuration);
//构建Netty的MarshallingDecoder对象，俩个参数分别为provider和单个消息序列化后的最大长度
MarshallingDecoder decoder = new MarshallingDecoder(provider, 1024);
return decoder;
}
/**
* 创建Jboss Marshalling编码器MarshallingEncoder
* @return MarshallingEncoder
*/
public static MarshallingEncoder buildMarshallingEncoder() {
final MarshallerFactory marshallerFactory = Marshalling.getProvidedMarshallerFactory("serial");
final MarshallingConfiguration configuration = new MarshallingConfiguration();
configuration.setVersion(5);
MarshallerProvider provider = new DefaultMarshallerProvider(marshallerFactory, configuration);
//构建Netty的MarshallingEncoder对象，MarshallingEncoder用于实现序列化接口的POJO对象序列化为二进制数组
MarshallingEncoder encoder = new MarshallingEncoder(provider);
return encoder;
}
}
- 服务器端
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.timeout.ReadTimeoutHandler;
public class Server {
public static void main(String[] args) throws Exception{
EventLoopGroup pGroup = new NioEventLoopGroup();
EventLoopGroup cGroup = new NioEventLoopGroup();
ServerBootstrap b = new ServerBootstrap();
b.group(pGroup, cGroup)
.channel(NioServerSocketChannel.class)
.option(ChannelOption.SO_BACKLOG, 1024)
//设置日志
.handler(new LoggingHandler(LogLevel.INFO))
.childHandler(new ChannelInitializer() {
protected void initChannel(SocketChannel sc) throws Exception {
sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
sc.pipeline().addLast(new ReadTimeoutHandler(5));
sc.pipeline().addLast(new ServerHandler());
}
});
ChannelFuture cf = b.bind(8765).sync();
cf.channel().closeFuture().sync();
pGroup.shutdownGracefully();
cGroup.shutdownGracefully();
}
}
添加了netty的日志LoggingHandler(LogLevel.INFO)
添加了sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
添加了sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
添加了sc.pipeline().addLast(new ReadTimeoutHandler(5));
- 服务器端处理程序，可以将object对象状态的的message转为Request对象
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
public class ServerHandler extends ChannelHandlerAdapter{
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
Request request = (Request)msg;
System.out.println("Server : " + request.getId() + ", " + request.getName() + ", " + request.getRequestMessage());
Response response = new Response();
response.setId(request.getId());
response.setName("response" + request.getId());
response.setResponseMessage("响应内容" + request.getId());
ctx.writeAndFlush(response);//.addListener(ChannelFutureListener.CLOSE);
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
ctx.close();
}
}
- 客户端
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.timeout.ReadTimeoutHandler;
import java.util.concurrent.TimeUnit;
/**
* Best Do It
*/
public class Client {
private static class SingletonHolder {
static final Client instance = new Client();
}
public static Client getInstance(){
return SingletonHolder.instance;
}
private EventLoopGroup group;
private Bootstrap b;
private ChannelFuture cf ;
private Client(){
group = new NioEventLoopGroup();
b = new Bootstrap();
b.group(group)
.channel(NioSocketChannel.class)
.handler(new LoggingHandler(LogLevel.INFO))
.handler(new ChannelInitializer() {
@Override
protected void initChannel(SocketChannel sc) throws Exception {
sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
//超时handler（当服务器端与客户端在指定时间以上没有任何进行通信，则会关闭响应的通道，主要为减小服务端资源占用）
sc.pipeline().addLast(new ReadTimeoutHandler(5));
sc.pipeline().addLast(new ClientHandler());
}
});
}
public void connect(){
try {
this.cf = b.connect("127.0.0.1", 8765).sync();
System.out.println("远程服务器已经连接, 可以进行数据交换..");
} catch (Exception e) {
e.printStackTrace();
}
}
public ChannelFuture getChannelFuture(){
if(this.cf == null){
this.connect();
}
if(!this.cf.channel().isActive()){
this.connect();
}
return this.cf;
}
public static void main(String[] args) throws Exception{
final Client c = Client.getInstance();
//c.connect();
ChannelFuture cf = c.getChannelFuture();
for(int i = 1; i <= 3; i++ ){
Request request = new Request();
request.setId("" + i);
request.setName("pro" + i);
request.setRequestMessage("数据信息" + i);
cf.channel().writeAndFlush(request);
TimeUnit.SECONDS.sleep(4);
}
cf.channel().closeFuture().sync();
new Thread(new Runnable() {
@Override
public void run() {
try {
System.out.println("进入子线程...");
ChannelFuture cf = c.getChannelFuture();
System.out.println(cf.channel().isActive());
System.out.println(cf.channel().isOpen());
//再次发送数据
Request request = new Request();
request.setId("" + 4);
request.setName("pro" + 4);
request.setRequestMessage("数据信息" + 4);
cf.channel().writeAndFlush(request);
cf.channel().closeFuture().sync();
System.out.println("子线程结束.");
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}).start();
System.out.println("断开连接,主线程结束..");
}
}
添加了netty的日志LoggingHandler(LogLevel.INFO)
添加了sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
添加了sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
添加了sc.pipeline().addLast(new ReadTimeoutHandler(5));
- 客户端处理程序,可以将object对象状态的的message转为Response对象
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.util.ReferenceCountUtil;
public class ClientHandler extends ChannelHandlerAdapter{
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
try {
Response resp = (Response)msg;
System.out.println("Client : " + resp.getId() + ", " + resp.getName() + ", " + resp.getResponseMessage());
} finally {
ReferenceCountUtil.release(msg);
}
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
ctx.close();
}
}
- Request类中预留了一个字段attchement，作为附件的字节数组，可以先将文件读入，然后对数据进行压缩，再发送，服务器接收，解压缩，写入到服务器端文件，压缩工具类：
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
public class GzipUtils {
public static byte[] gzip(byte[] data) throws Exception{
ByteArrayOutputStream bos = new ByteArrayOutputStream();
GZIPOutputStream gzip = new GZIPOutputStream(bos);
gzip.write(data);
gzip.finish();
gzip.close();
byte[] ret = bos.toByteArray();
bos.close();
return ret;
}
public static byte[] ungzip(byte[] data) throws Exception{
ByteArrayInputStream bis = new ByteArrayInputStream(data);
GZIPInputStream gzip = new GZIPInputStream(bis);
byte[] buf = new byte[1024];
int num = -1;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
while((num = gzip.read(buf, 0 , buf.length)) != -1 ){
bos.write(buf, 0, num);
}
gzip.close();
bis.close();
byte[] ret = bos.toByteArray();
bos.flush();
bos.close();
return ret;
}
public static void main(String[] args) throws Exception{
//读取文件
String readPath = System.getProperty("user.dir") + File.separatorChar + "sources" + File.separatorChar + "006.jpg";
File file = new File(readPath);
FileInputStream in = new FileInputStream(file);
byte[] data = new byte[in.available()];
in.read(data);
in.close();
System.out.println("文件原始大小:" + data.length);
//测试压缩
byte[] ret1 = GzipUtils.gzip(data);
System.out.println("压缩之后大小:" + ret1.length);
byte[] ret2 = GzipUtils.ungzip(ret1);
System.out.println("还原之后大小:" + ret2.length);
//写出文件
String writePath = System.getProperty("user.dir") + File.separatorChar + "receive" + File.separatorChar + "006.jpg";
FileOutputStream fos = new FileOutputStream(writePath);
fos.write(ret2);
fos.close();
}
}
- java 获取系统属性工具类：
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Map;
import java.util.Properties;
import org.hyperic.sigar.Cpu;
import org.hyperic.sigar.CpuInfo;
import org.hyperic.sigar.CpuPerc;
import org.hyperic.sigar.FileSystem;
import org.hyperic.sigar.FileSystemUsage;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.NetFlags;
import org.hyperic.sigar.NetInterfaceConfig;
import org.hyperic.sigar.NetInterfaceStat;
import org.hyperic.sigar.OperatingSystem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
import org.hyperic.sigar.Swap;
import org.hyperic.sigar.Who;
public class TestSigar {
public static void main(String[] args) {
try {
// System信息，从jvm获取
property();
System.out.println("----------------------------------");
// cpu信息
cpu();
System.out.println("----------------------------------");
// 内存信息
memory();
System.out.println("----------------------------------");
// 操作系统信息
os();
System.out.println("----------------------------------");
// 用户信息
who();
System.out.println("----------------------------------");
// 文件系统信息
file();
System.out.println("----------------------------------");
// 网络信息
net();
System.out.println("----------------------------------");
// 以太网信息
ethernet();
System.out.println("----------------------------------");
} catch (Exception e1) {
e1.printStackTrace();
}
}
private static void property() throws UnknownHostException {
Runtime r = Runtime.getRuntime();
Properties props = System.getProperties();
InetAddress addr;
addr = InetAddress.getLocalHost();
String ip = addr.getHostAddress();
Map map = System.getenv();
String userName = map.get("USERNAME");// 获取用户名
String computerName = map.get("COMPUTERNAME");// 获取计算机名
String userDomain = map.get("USERDOMAIN");// 获取计算机域名
System.out.println("用户名: " + userName);
System.out.println("计算机名: " + computerName);
System.out.println("计算机域名: " + userDomain);
System.out.println("本地ip地址: " + ip);
System.out.println("本地主机名: " + addr.getHostName());
System.out.println("JVM可以使用的总内存: " + r.totalMemory());
System.out.println("JVM可以使用的剩余内存: " + r.freeMemory());
System.out.println("JVM可以使用的处理器个数: " + r.availableProcessors());
System.out.println("Java的运行环境版本： " + props.getProperty("java.version"));
System.out.println("Java的运行环境供应商： " + props.getProperty("java.vendor"));
System.out.println("Java供应商的URL： " + props.getProperty("java.vendor.url"));
System.out.println("Java的安装路径： " + props.getProperty("java.home"));
System.out.println("Java的虚拟机规范版本： " + props.getProperty("java.vm.specification.version"));
System.out.println("Java的虚拟机规范供应商： " + props.getProperty("java.vm.specification.vendor"));
System.out.println("Java的虚拟机规范名称： " + props.getProperty("java.vm.specification.name"));
System.out.println("Java的虚拟机实现版本： " + props.getProperty("java.vm.version"));
System.out.println("Java的虚拟机实现供应商： " + props.getProperty("java.vm.vendor"));
System.out.println("Java的虚拟机实现名称： " + props.getProperty("java.vm.name"));
System.out.println("Java运行时环境规范版本： " + props.getProperty("java.specification.version"));
System.out.println("Java运行时环境规范供应商： " + props.getProperty("java.specification.vender"));
System.out.println("Java运行时环境规范名称： " + props.getProperty("java.specification.name"));
System.out.println("Java的类格式版本号： " + props.getProperty("java.class.version"));
System.out.println("Java的类路径： " + props.getProperty("java.class.path"));
System.out.println("加载库时搜索的路径列表： " + props.getProperty("java.library.path"));
System.out.println("默认的临时文件路径： " + props.getProperty("java.io.tmpdir"));
System.out.println("一个或多个扩展目录的路径： " + props.getProperty("java.ext.dirs"));
System.out.println("操作系统的名称： " + props.getProperty("os.name"));
System.out.println("操作系统的构架： " + props.getProperty("os.arch"));
System.out.println("操作系统的版本： " + props.getProperty("os.version"));
System.out.println("文件分隔符： " + props.getProperty("file.separator"));
System.out.println("路径分隔符： " + props.getProperty("path.separator"));
System.out.println("行分隔符： " + props.getProperty("line.separator"));
System.out.println("用户的账户名称： " + props.getProperty("user.name"));
System.out.println("用户的主目录： " + props.getProperty("user.home"));
System.out.println("用户的当前工作目录： " + props.getProperty("user.dir"));
}
private static void memory() throws SigarException {
Sigar sigar = new Sigar();
Mem mem = sigar.getMem();
// 内存总量
System.out.println("内存总量: " + mem.getTotal() / 1024L + "K av");
// 当前内存使用量
System.out.println("当前内存使用量: " + mem.getUsed() / 1024L + "K used");
// 当前内存剩余量
System.out.println("当前内存剩余量: " + mem.getFree() / 1024L + "K free");
Swap swap = sigar.getSwap();
// 交换区总量
System.out.println("交换区总量: " + swap.getTotal() / 1024L + "K av");
// 当前交换区使用量
System.out.println("当前交换区使用量: " + swap.getUsed() / 1024L + "K used");
// 当前交换区剩余量
System.out.println("当前交换区剩余量: " + swap.getFree() / 1024L + "K free");
}
private static void cpu() throws SigarException {
Sigar sigar = new Sigar();
CpuInfo infos[] = sigar.getCpuInfoList();
CpuPerc cpuList[] = null;
System.out.println("cpu 总量参数情况:" + sigar.getCpu());
System.out.println("cpu 总百分比情况:" + sigar.getCpuPerc());
cpuList = sigar.getCpuPercList();
for (int i = 0; i < infos.length; i++) {// 不管是单块CPU还是多CPU都适用
CpuInfo info = infos[i];
System.out.println("第" + (i + 1) + "块CPU信息");
System.out.println("CPU的总量MHz: " + info.getMhz());// CPU的总量MHz
System.out.println("CPU生产商: " + info.getVendor());// 获得CPU的卖主，如：Intel
System.out.println("CPU类别: " + info.getModel());// 获得CPU的类别，如：Celeron
System.out.println("CPU缓存数量: " + info.getCacheSize());// 缓冲存储器数量
printCpuPerc(cpuList[i]);
}
}
private static void printCpuPerc(CpuPerc cpu) {
System.out.println("CPU用户使用率: " + CpuPerc.format(cpu.getUser()));// 用户使用率
System.out.println("CPU系统使用率: " + CpuPerc.format(cpu.getSys()));// 系统使用率
System.out.println("CPU当前等待率: " + CpuPerc.format(cpu.getWait()));// 当前等待率
System.out.println("CPU当前错误率: " + CpuPerc.format(cpu.getNice()));//
System.out.println("CPU当前空闲率: " + CpuPerc.format(cpu.getIdle()));// 当前空闲率
System.out.println("CPU总的使用率: " + CpuPerc.format(cpu.getCombined()));// 总的使用率
}
private static void os() {
OperatingSystem OS = OperatingSystem.getInstance();
// 操作系统内核类型如： 386、486、586等x86
System.out.println("操作系统: " + OS.getArch());
System.out.println("操作系统CpuEndian(): " + OS.getCpuEndian());//
System.out.println("操作系统DataModel(): " + OS.getDataModel());//
// 系统描述
System.out.println("操作系统的描述: " + OS.getDescription());
// 操作系统类型
// System.out.println("OS.getName(): " + OS.getName());
// System.out.println("OS.getPatchLevel(): " + OS.getPatchLevel());//
// 操作系统的卖主
System.out.println("操作系统的卖主: " + OS.getVendor());
// 卖主名称
System.out.println("操作系统的卖主名: " + OS.getVendorCodeName());
// 操作系统名称
System.out.println("操作系统名称: " + OS.getVendorName());
// 操作系统卖主类型
System.out.println("操作系统卖主类型: " + OS.getVendorVersion());
// 操作系统的版本号
System.out.println("操作系统的版本号: " + OS.getVersion());
}
private static void who() throws SigarException {
Sigar sigar = new Sigar();
Who who[] = sigar.getWhoList();
if (who != null && who.length > 0) {
for (int i = 0; i < who.length; i++) {
// System.out.println("当前系统进程表中的用户名" + String.valueOf(i));
Who _who = who[i];
System.out.println("用户控制台: " + _who.getDevice());
System.out.println("用户host: " + _who.getHost());
// System.out.println("getTime(): " + _who.getTime());
// 当前系统进程表中的用户名
System.out.println("当前系统进程表中的用户名: " + _who.getUser());
}
}
}
private static void file() throws Exception {
Sigar sigar = new Sigar();
FileSystem fslist[] = sigar.getFileSystemList();
for (int i = 0; i < fslist.length; i++) {
System.out.println("分区的盘符名称" + i);
FileSystem fs = fslist[i];
// 分区的盘符名称
System.out.println("盘符名称: " + fs.getDevName());
// 分区的盘符名称
System.out.println("盘符路径: " + fs.getDirName());
System.out.println("盘符标志: " + fs.getFlags());//
// 文件系统类型，比如 FAT32、NTFS
System.out.println("盘符类型: " + fs.getSysTypeName());
// 文件系统类型名，比如本地硬盘、光驱、网络文件系统等
System.out.println("盘符类型名: " + fs.getTypeName());
// 文件系统类型
System.out.println("盘符文件系统类型: " + fs.getType());
FileSystemUsage usage = null;
usage = sigar.getFileSystemUsage(fs.getDirName());
switch (fs.getType()) {
case 0: // TYPE_UNKNOWN ：未知
break;
case 1: // TYPE_NONE
break;
case 2: // TYPE_LOCAL_DISK : 本地硬盘
// 文件系统总大小
System.out.println(fs.getDevName() + "总大小: " + usage.getTotal() + "KB");
// 文件系统剩余大小
System.out.println(fs.getDevName() + "剩余大小: " + usage.getFree() + "KB");
// 文件系统可用大小
System.out.println(fs.getDevName() + "可用大小: " + usage.getAvail() + "KB");
// 文件系统已经使用量
System.out.println(fs.getDevName() + "已经使用量: " + usage.getUsed() + "KB");
double usePercent = usage.getUsePercent() * 100D;
// 文件系统资源的利用率
System.out.println(fs.getDevName() + "资源的利用率: " + usePercent + "%");
break;
case 3:// TYPE_NETWORK ：网络
break;
case 4:// TYPE_RAM_DISK ：闪存
break;
case 5:// TYPE_CDROM ：光驱
break;
case 6:// TYPE_SWAP ：页面交换
break;
}
System.out.println(fs.getDevName() + "读出： " + usage.getDiskReads());
System.out.println(fs.getDevName() + "写入： " + usage.getDiskWrites());
}
return;
}
private static void net() throws Exception {
Sigar sigar = new Sigar();
String ifNames[] = sigar.getNetInterfaceList();
for (int i = 0; i < ifNames.length; i++) {
String name = ifNames[i];
NetInterfaceConfig ifconfig = sigar.getNetInterfaceConfig(name);
System.out.println("网络设备名: " + name);// 网络设备名
System.out.println("IP地址: " + ifconfig.getAddress());// IP地址
System.out.println("子网掩码: " + ifconfig.getNetmask());// 子网掩码
if ((ifconfig.getFlags() & 1L) <= 0L) {
System.out.println("!IFF_UP...skipping getNetInterfaceStat");
continue;
}
NetInterfaceStat ifstat = sigar.getNetInterfaceStat(name);
System.out.println(name + "接收的总包裹数:" + ifstat.getRxPackets());// 接收的总包裹数
System.out.println(name + "发送的总包裹数:" + ifstat.getTxPackets());// 发送的总包裹数
System.out.println(name + "接收到的总字节数:" + ifstat.getRxBytes());// 接收到的总字节数
System.out.println(name + "发送的总字节数:" + ifstat.getTxBytes());// 发送的总字节数
System.out.println(name + "接收到的错误包数:" + ifstat.getRxErrors());// 接收到的错误包数
System.out.println(name + "发送数据包时的错误数:" + ifstat.getTxErrors());// 发送数据包时的错误数
System.out.println(name + "接收时丢弃的包数:" + ifstat.getRxDropped());// 接收时丢弃的包数
System.out.println(name + "发送时丢弃的包数:" + ifstat.getTxDropped());// 发送时丢弃的包数
}
}
private static void ethernet() throws SigarException {
Sigar sigar = null;
sigar = new Sigar();
String[] ifaces = sigar.getNetInterfaceList();
for (int i = 0; i < ifaces.length; i++) {
NetInterfaceConfig cfg = sigar.getNetInterfaceConfig(ifaces[i]);
if (NetFlags.LOOPBACK_ADDRESS.equals(cfg.getAddress()) || (cfg.getFlags() & NetFlags.IFF_LOOPBACK) != 0
|| NetFlags.NULL_HWADDR.equals(cfg.getHwaddr())) {
continue;
}
System.out.println(cfg.getName() + "IP地址:" + cfg.getAddress());// IP地址
System.out.println(cfg.getName() + "网关广播地址:" + cfg.getBroadcast());// 网关广播地址
System.out.println(cfg.getName() + "网卡MAC地址:" + cfg.getHwaddr());// 网卡MAC地址
System.out.println(cfg.getName() + "子网掩码:" + cfg.getNetmask());// 子网掩码
System.out.println(cfg.getName() + "网卡描述信息:" + cfg.getDescription());// 网卡描述信息
System.out.println(cfg.getName() + "网卡类型" + cfg.getType());//
}
}
}