服务器怎么写java代码,java服务器编程
如何用自己的电脑做服务器，用java语言写服务器程序
你指的服务器程序是指B/S(浏览器/服务器)
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还是C/S(客户端/服务器)模式啊,不过不管你想写那种服务端程序首先都是要先安装JDK的,然后才开始开发,如果是B/S可以使用tomcat作为服务器,C/S的话就要自己写了
怎样让服务器执行已经在别的电脑上写好的代码（Java写的）？具体步骤是怎样的？
如果是源码.java文件，需要先编译成.class文件，编译用服务器上面的jdk版本编译
简单的java文件，javac就可以了，如果是一个项目就比较麻烦了
一般还是用eclipse自动编译最简单了，然后上传到服务器
如果是命令行运行的代码，找到入口类的main方法，然后执行 java xxx就行了 （xxx是入口类名）
HttpPost发送字符串到服务器，服务器接收代码并显示怎么写Java代码？
服务器端接收客户端的请求的话，需要在服务器端的java文件实现HttpServlet这个接口，并且在web.xml里配置一个客户端的请求拦截。
web.xml里的代码里添加
servlet
servlet-nametestServlet/servlet-name!--这个名字可以自己定--
servlet-classcom.sun.testServlet/servlet-class!--这里是你需要接收客户端请求的那个类以及包名，也就是下面拦截到的url会转发到的那个类--
/servlet
servlet-mapping
servlet-nametestServlet/servlet-name!--和上面的name需要一样--
url-pattern/*/url-pattern!--什么类型的客户端请求会被拦截，/* 就是全拦截了--
/servlet-mapping
然后再服务器端的类文件，要实现 HttpServlet这个接口。并把doGet()方法和doPost()方法重写。
这两种方法分别对应的是客户端的get请求和post请求的处理，你的是post请求的话，就在doPost()方法内，写你的业务。
然后再用下面两句话，设置你要返回客户端的数据。
//这是设置你要返回去的数据。value才是你的数据，key是标签。
request.setAttribute("key", "value");
//这是设置你要返回去test.jsp这张页面。
request.getRequestDispatcher("test.jsp").forward(request, response);
不知道你是不是这个意思，你可以再去看看相关servlet方面的知识，
关于客户端和服务器端大概也就是有个servlet作为请求的拦截
然后经过相关判断后，选择性的传到服务器的相应类里面。
再经过类里面的业务，把得到需要的数据回传到指定的页面上。
根据要求编写java代码，急求，答案正确加100分！求高手！
服务器端：
package com.lqq.service;
import java.io.File;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.List;
import com.lqq.vo.QueryType;
import com.lqq.vo.Student;
public class DealClientRequest implements Runnable
{
private Socket s = null;
private ParserXML p = new ParserXML(new File("students.xml"));
public DealClientRequest(Socket s)
{
this.s = s;
}
@Override
public void run()
{
if(s != null)
{
try
{
ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
QueryType qt = (QueryType) ois.readObject();
if(qt.getQueryType() == 1)//单查
{
System.out.println("执行单查，查询的名字= " + qt.getQueryName());
Student stu = p.getStudent(qt.getQueryName());
oos.writeObject(stu);
}else if(qt.getQueryType() == 2)//全查
{
System.out.println("执行全查");
ListStudent list = p.getAllStudent();
for(int i = 0; i list.size(); i++)
{
Student stu = list.get(i);
oos.writeObject(stu);
}
}
} catch (IOException e)
{
e.printStackTrace();
} catch (ClassNotFoundException e)
{
e.printStackTrace();
}
}
}
}
*************************
package com.lqq.service;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
public class MainService
{
private ServerSocket ss;
public void startService() throws IOException
{
ss = new ServerSocket(10086);
while(true)
{
System.out.println("服务器在10086等待...");
Socket s = ss.accept();
new Thread(new DealClientRequest(s)).start();
System.out.println("启动处理线程成功");
}
}
}
******************
package com.lqq.service;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
import com.lqq.vo.Student;
public class ParserXML
{
private DocumentBuilderFactory bdf;
private DocumentBuilder db;
private Document dom;
public ParserXML(File file)
{
bdf = DocumentBuilderFactory.newInstance();
try
{
db = bdf.newDocumentBuilder();
dom = db.parse(file);
} catch (Exception e)
{
e.printStackTrace();
}
}
public ListStudent getAllStudent()
{
ListStudent stu = new ArrayListStudent();
Element root = dom.getDocumentElement();
NodeList list = root.getElementsByTagName("stu");
for(int i = 0; i list.getLength(); i++)
{
Element e = (Element) list.item(i);
Student st = new Student();
NodeList names = e.getElementsByTagName("name");
if(names.getLength() == 1)
{
Element name = (Element)names.item(0);
Text text = (Text) name.getFirstChild();
st.setStuName(text.getNodeValue());
}
NodeList sexs = e.getElementsByTagName("sex");
if(sexs.getLength() == 1)
{
Element name = (Element)sexs.item(0);
Text text = (Text) name.getFirstChild();
st.setStuGender(text.getNodeValue());
}
NodeList ages = e.getElementsByTagName("age");
if(ages.getLength() == 1)
{
Element name = (Element)ages.item(0);
Text text = (Text) name.getFirstChild();
st.setStuAge(Integer.parseInt(text.getNodeValue()));
}
NodeList classs = e.getElementsByTagName("class");
if(classs.getLength() == 1)
{
Element name = (Element)classs.item(0);
Text text = (Text) name.getFirstChild();
st.setStuClassName(text.getNodeValue());
}
stu.add(st);
}
return stu;
}
public Student getStudent(String stuName)
{
ListStudent list = this.getAllStudent();
for(int i = 0; i list.size(); i++)
{
Student st = list.get(i);
if(st.getStuName().equals(stuName))
return st;
}
return null;
}
}
*************
package com.lqq.service;
import java.io.IOException;
public class Service
{
public static void main(String[] args)
{
MainService ms = new MainService();
try
{
ms.startService();
} catch (IOException e)
{
e.printStackTrace();
}
}
}
*******
package com.lqq.vo;
import java.io.Serializable;
public class QueryType implements Serializable
{
private static final long serialVersionUID = 8713870836629046060L;
/**
* 1 单查
* 2 全查
*/
private byte queryType;
private String queryName;
public byte getQueryType()
{
return queryType;
}
public void setQueryType(byte queryType)
{
this.queryType = queryType;
}
public String getQueryName()
{
return queryName;
}
public void setQueryName(String string)
{
this.queryName = string;
}
}
************
package com.lqq.vo;
import java.io.Serializable;
public class Student implements Serializable
{
private static final long serialVersionUID = -6087251613589160139L;
private String stuName;
private int stuAge;
private String stuGender;
private String stuClassName;
@Override
public String toString()
{
return "姓名: " + stuName + "\t性别: " + stuGender
+ "\t年龄: " + stuAge + "\t班级: " + stuClassName;
}
public String getStuName()
{
return stuName;
}
public void setStuName(String stuName)
{
this.stuName = stuName;
}
public int getStuAge()
{
return stuAge;
}
public void setStuAge(int stuAge)
{
this.stuAge = stuAge;
}
public String getStuGender()
{
return stuGender;
}
public void setStuGender(String stuGender)
{
this.stuGender = stuGender;
}
public String getStuClassName()
{
return stuClassName;
}
public void setStuClassName(String stuClassName)
{
this.stuClassName = stuClassName;
}
}
*************
?xml version="1.0" encoding="UTF-8"?
stus
stu
name令狐冲/name
age12/age
class华山派/class
sex男/sex
/stu
stu
name东方不败/name
age22/age
class日月神教/class
sex女/sex
/stu
stu
name岳不群/name
age23/age
class华山派/class
sex妖/sex
/stu
stu
name风清扬/name
age88/age
class华山派/class
sex男/sex
/stu
/stus
客户端：
package com.lqq.c;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
import com.lqq.vo.QueryType;
import com.lqq.vo.Student;
public class AllQuery implements Runnable
{
private Socket s;
public AllQuery(QueryType qt)
{
try
{
s = new Socket("localhost", 10086);
ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
oos.writeObject(qt);
} catch (UnknownHostException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
}
@Override
public void run()
{
if(s != null)
{
try
{
ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
Student stu = (Student) ois.readObject();
Client c = new Client();
while(stu != null)
{
c.showStudentInfo(stu);
stu = (Student) ois.readObject();
}
} catch (IOException e)
{
e.printStackTrace();
} catch (ClassNotFoundException e)
{
e.printStackTrace();
}
}
}
}
**************
package com.lqq.c;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.Scanner;
import com.lqq.vo.QueryType;
import com.lqq.vo.Student;
public class Client
{
public void showStudentInfo(Student stu)
{
if(stu != null)
{
System.out.println(stu);
}
}
public void showMenu()
{
System.out.println("\t\t菜 单");
System.out.println("\t1.单 查");
System.out.println("\t2.全 查");
System.out.println("\t0.退 出");
}
public String getUserInput()
{
Scanner scan = new Scanner(System.in);
System.out.println("请输入:");
return scan.next();
}
public void requestQuery(String userSelect)
{
if(userSelect != null)
{
if("1".equals(userSelect.trim()))
{
QueryType qt = new QueryType();
qt.setQueryType((byte)1);
Scanner san = new Scanner(System.in);
System.out.println("请输入查询的学生名字:");
String queryStuName = san.next();
qt.setQueryName(queryStuName);
this.executeQeury(qt);
}else if("2".equals(userSelect.trim()))
{
QueryType qt = new QueryType();
qt.setQueryType((byte)2);
this.executeQeury(qt);
}else if("0".equals(userSelect.trim()))
{
System.exit(0);
}
else
{
System.out.println("输入有误");
}
}
}
public void executeQeury(QueryType qt)
{
try
{
Socket s = new Socket("localhost", 10086);
ObjectOutputStream oos = new ObjectOutputStream(s.getOutputStream());
oos.writeObject(qt);
System.out.println("请求发送完毕");
ObjectInputStream ois = new ObjectInputStream(s.getInputStream());
if(qt.getQueryType() == 1)
{
Student stu = (Student) ois.readObject();
showStudentInfo(stu);
}else if(qt.getQueryType() == 2)
{
new Thread(new AllQuery(qt)).start();
}
} catch (IOException e)
{
e.printStackTrace();
} catch (ClassNotFoundException e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
Client client = new Client();
while(true)
{
client.showMenu();
client.requestQuery(client.getUserInput());
}
}
}
**********
package com.lqq.vo;
import java.io.Serializable;
public class QueryType implements Serializable
{
private static final long serialVersionUID = 8713870836629046060L;
/**
* 1 单查
* 2 全查
*/
private byte queryType;
private String queryName;
public byte getQueryType()
{
return queryType;
}
public void setQueryType(byte queryType)
{
this.queryType = queryType;
}
public String getQueryName()
{
return queryName;
}
public void setQueryName(String string)
{
this.queryName = string;
}
}
**********
package com.lqq.vo;
import java.io.Serializable;
public class Student implements Serializable
{
private static final long serialVersionUID = -6087251613589160139L;
private String stuName;
private int stuAge;
private String stuGender;
private String stuClassName;
@Override
public String toString()
{
return "姓名: " + stuName + "\t性别: " + stuGender
+ "\t年龄: " + stuAge + "\t班级: " + stuClassName;
}
public String getStuName()
{
return stuName;
}
public void setStuName(String stuName)
{
this.stuName = stuName;
}
public int getStuAge()
{
return stuAge;
}
public void setStuAge(int stuAge)
{
this.stuAge = stuAge;
}
public String getStuGender()
{
return stuGender;
}
public void setStuGender(String stuGender)
{
this.stuGender = stuGender;
}
public String getStuClassName()
{
return stuClassName;
}
public void setStuClassName(String stuClassName)
{
this.stuClassName = stuClassName;
}
}
时间太紧，没有完善代码，基本功能实现了，代码没有优化，你自己再改改，希望可以帮到你
关于java，soap服务器端的代码怎么写
soapenv:Header/
soapenv:Body
api:getEmp
shopIdstring/shopId
/api:getEmp
/soapenv:Body
/soapenv:Envelope
这个时SOAP协议的标准报文格式，客户端只要发送这样的报文给支持SOAP协议的webservice服务器即可成功调用web service服务
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做web服务器的一些简单的代码如何写？（用Java里面的面向对象的知识和sql的东西写）
用java写一个页向对像的web 服务器,得借助工具!
不然估计把你累吐血了!
想用java做一个web 服务器你得懂这样的几个方面!
xml,servlet,jsp,javabean用这些应该做一具小型的差不多了!
首先,jsp属性界面类,响应客户端的请求发送给servlet!
servlet控制类,sevlet接受客户端的请求做相应的处理!
比如,调用javabean的数据库连接的类!
做完一系列操作再由servlet转发到jsp，显示客户所需要的数据!
文章名称：服务器怎么写java代码,java服务器编程
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