对于Socket
编程来说，通常我们遇到的最大的麻烦就是要定义自己的协议，用来在server端和client端处理请求和响应，当socket处理的请求对象越来越多以后，如果规则定义不清楚就会导致代码急剧膨胀，并且维护性变差，所以这里我想了一个简单的方式来处理这种情况。 www.2cto.com
下面大概说一下我的想法
1. 首先会有几个和业务相关的类，User，MyUserService和MyUserServiceImpl。User就是我们通常的实体类；MyUserService是我们针对User实体类提供的业务逻辑接口，比较简单就写了三个方法；MyUserServiceImpl是业务逻辑实现类。
User.java
[java]
package com.googlecode.garbagecan.test.socket.sample10;
public class User implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private String name;
private String password;
public User() {
}
public User(String name, String password) {
this.name = name;
this.password = password;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
MyUserService.java
[java]
package com.googlecode.garbagecan.test.socket.sample10;
import java.util.List;
public interface MyUserService {
List list(int size);
User findByName(String name);
void test();
}
MyUserServiceImpl.java
[java]
package com.googlecode.garbagecan.test.socket.sample10;
import java.util.ArrayList;
import java.util.List;
public class MyUserServiceImpl implements MyUserService {
@Override
public List list(int size) {
List users = new ArrayList();
for (int i = 0; i < size; i++) {
users.add(new User("user_" + i, "password_" + i));
}
return users;
}
@Override
public User findByName(String name) {
return new User(name, null);
}
@Override
public void test() {
// do nothing
}
}
2. 服务器端类，主要有三个类MyServer，MyServerSimpleImpl和MyServerNIOImpl。MyServer是服务器端接口类，用来启动Socket server；MyServerSimpleImpl和MyServerNIOImpl是两个实现类，其中MyServerSimpleImpl是使用简单的Socket实现的，MyServerNIOImpl是使用java nio包里的类实现的，这个实现会有更好的性能。
MyServer.java
[java]
package com.googlecode.garbagecan.test.socket.sample10;
public interface MyServer {
public void startup() throws Exception;
public void shutdown() throws Exception;
}
MyServerSimpleImpl.java
[java]
package com.googlecode.garbagecan.test.socket.sample10;
import com.googlecode.garbagecan.test.socket.IOUtil;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.reflect.Method;
import java.net.ServerSocket;
import java.net.Socket;
public class MyServerSimpleImpl implements MyServer {
private int port;
public MyServerSimpleImpl(int port) {
this.port = port;
}
public void startup() throws Exception {
new Thread(new Runnable() {
@Override
public void run() {
try {
ServerS