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Response:
public class Response {
private BufferedWriter bw;
private Socket client;
private StringBuilder headInfo; //協(xié)議頭包括狀態(tài)行和請求頭和回車
private StringBuilder content;
private int len=0; //正文的字節(jié)數(shù)
private final String BLANK=" ";
private final String CRLF="\r\n";
private Response()
{
content=new StringBuilder();
headInfo=new StringBuilder();
len=0;
}
public Response(Socket client)
{
this(); //調(diào)用默認(rèn)構(gòu)造器
try {
bw=new BufferedWriter(new OutputStreamWriter(client.getOutputStream()));
} catch (IOException e) {
e.printStackTrace();
headInfo=null;
}
}
public Response(OutputStream os)
{
this(); //調(diào)用默認(rèn)構(gòu)造器
bw=new BufferedWriter(new OutputStreamWriter(os));
}
public Response print(String info) //流模式,不斷添加內(nèi)容返回自身
{
content.append(info);
len+=info.getBytes().length;
return this;
}
public Response println(String info)
{
content.append(info).append(CRLF);
len+=(info+CRLF).getBytes().length; //換行符也占長度
return this;
}
//推送響應(yīng)信息
public void pushToBrowser(int code) throws IOException
{
if(null==headInfo) {
code=505;
}
createHeadInfo(code);
bw.append(headInfo); //bw.append()以追加模式寫出數(shù)據(jù),.write()刷新原有數(shù)據(jù),只有當(dāng)前數(shù)據(jù)
bw.append(content);
bw.flush();
}
//構(gòu)建頭信息
private void createHeadInfo(int code) //傳不同的code有不同的狀態(tài)
{
//1、響應(yīng)行:HTTP/1.1 200 OK
headInfo.append("HTTP/1.1").append(BLANK);
headInfo.append(code).append(BLANK);
switch(code)
{
case 200:
headInfo.append("OK").append(CRLF);
break;
case 404:
headInfo.append("NOT FOUND").append(CRLF);
break;
case 505:
headInfo.append("SERVER ERROR").append(CRLF);
break;
}
//2、響應(yīng)頭
headInfo.append("Date:").append(new Date()).append(CRLF);
headInfo.append("Server:").append("shsxt Server/0.0.1;charset=GBK").append(CRLF);
headInfo.append("Content-type:text/html").append(CRLF);
headInfo.append("Content-length:").append(len).append(CRLF);
headInfo.append(CRLF); //響應(yīng)頭和正文之間有空行
}
}
Server:
public class Server02 {
private ServerSocket serverSocket ;
public static void main(String[] args) {
Server02 server = new Server02();
server.start();
}
//啟動服務(wù)
public void start() {
try {
serverSocket = new ServerSocket(8888);
receive();
} catch (IOException e) {
e.printStackTrace();
System.out.println("服務(wù)器啟動失敗....");
}
}
//接受連接處理
public void receive() {
try {
Socket client = serverSocket.accept();
System.out.println("一個客戶端建立了連接....");
//獲取請求協(xié)議
InputStream is =client.getInputStream();
byte[] datas = new byte[1024*1024];
int len = is.read(datas);
String requestInfo = new String(datas,0,len);
System.out.println(requestInfo);
//關(guān)注了內(nèi)容
Response response=new Response(client); //創(chuàng)建好了輸出流
response.print("<html>"); //通過輸出流輸出
response.print("<head>");
response.print("<title>");
response.print("服務(wù)器響應(yīng)成功");
response.print("</title>");
response.print("</head>");
response.print("<body>");
response.print("shsxt server終于回來了。。。。");
response.print("</body>");
response.print("</html>");
//關(guān)注了狀態(tài)碼
response.pushToBrowser(200);
} catch (IOException e) {
e.printStackTrace();
System.out.println("客戶端錯誤");
}
}
//停止服務(wù)
public void stop() {
}
}
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