ren*_*don 41
迟到的答案可能对其他人有用.
这是一个简单的hello Web Server,不完全是你要求的,但你可以从这里继续.以下程序假设您www在SD卡的根目录中有一个目录,并且index.html内部有一个文件.
主要活动Httpd.java:
package com.inforscience.web;
import android.app.Activity;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import java.io.*;
import java.util.*;
public class Httpd extends Activity
{
private WebServer server;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
server = new WebServer();
try {
server.start();
} catch(IOException ioe) {
Log.w("Httpd", "The server could not start.");
}
Log.w("Httpd", "Web server initialized.");
}
// DON'T FORGET to stop the server
@Override
public void onDestroy()
{
super.onDestroy();
if (server != null)
server.stop();
}
private class WebServer extends NanoHTTPD {
public WebServer()
{
super(8080);
}
@Override
public Response serve(String uri, Method method,
Map<String, String> header,
Map<String, String> parameters,
Map<String, String> files) {
String answer = "";
try {
// Open file from SD Card
File root = Environment.getExternalStorageDirectory();
FileReader index = new FileReader(root.getAbsolutePath() +
"/www/index.html");
BufferedReader reader = new BufferedReader(index);
String line = "";
while ((line = reader.readLine()) != null) {
answer += line;
}
reader.close();
} catch(IOException ioe) {
Log.w("Httpd", ioe.toString());
}
return new NanoHTTPD.Response(answer);
}
}
}
显然这个NanoHTTPD类必须在同一个包中.
你需要授予互联网许可AndroidManifest.xml.
<uses-permission android:name="android.permission.INTERNET" />
并读取外部存储权限.
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
编辑:要访问服务器,请使用设备的IP打开Web浏览器,例如192.168.1.20:8080.
笔记:
可以在这里找到相当不错的源代码:https: //github.com/Teaonly/android-eye
存储html和JavaScript文件的Chceck assets文件夹 https://github.com/Teaonly/android-eye/tree/master/assets
TeaServer - 服务器实现 https://github.com/Teaonly/android-eye/blob/master/src/teaonly/droideye/TeaServer.java
MainActivity - 服务器初始化 https://github.com/Teaonly/android-eye/blob/master/src/teaonly/droideye/MainActivity.java
更新WebServer了适用于当前NanoHTTPD版本的类(请参阅rendon的回复):
private class WebServer extends NanoHTTPD {
public WebServer() {
super(8080);
}
@Override
public Response serve(IHTTPSession session) {
String answer = "";
try {
// Open file from SD Card
File root = Environment.getExternalStorageDirectory();
FileReader index = new FileReader(root.getAbsolutePath() +
"/www/index.html");
BufferedReader reader = new BufferedReader(index);
String line = "";
while ((line = reader.readLine()) != null) {
answer += line;
}
reader.close();
} catch(IOException ioe) {
Log.w("Httpd", ioe.toString());
}
return newFixedLengthResponse(answer);
}
}
小智 6
看看我是如何提供 HTML 文件和其他类型的文件的。我有一个扩展 Nanohttpd 类的 AndroidWebServer 类。这是我的回复方式-->
public Response serve(IHTTPSession session) {
String uri=session.getUri();
String msg = "<html><body><h1>Hello server</h1>\n";
File [] arrayfile;
int i=0;
try{
session.parseBody(new HashMap<String, String>());
}catch (ResponseException | IOException r){
r.printStackTrace();
}
Map<String, String> parms = session.getParms();
if (parms.get("username") == null) {
msg += "<form action='?' method='get'>\n <p>Your name: <input type='text' name='username'></p>\n" + "</form>\n";
} else {
msg += "<p>Hello, " + parms.get("username") + "!</p>";
}
msg += "<br><br><a href='/Open_rap'>Open Image of Lionel Messi</a><br><br>";
msg += "<br><br><a href='/files'>Browse Files</a><br><br>";
msg += "<br><br><a href='/getmethod'>GET METHOD OPERATION</a><br><br>";
msg += "<br><br><a href='/postmethod'>POST METHOD OPERATION</a><br><br>";
msg += "<br><br><a href='/jquery'>JQUERY OPERATION</a><br><br>";
if(uri.equals("/hello")){
String response="Hello World";
return newFixedLengthResponse(response);
}
else if(uri.equals("/getmethod")){
String html="<html><head><h1>Welcome to the Form</h1><head/><body>";
if(parms.get("name")==null){
html +="<form action='' method='get'> \n " +
"<p>Enter Your Name:</p> <input type='text' name='name'>" +
"</form>" +
"</body>";
}
else{
html +="<p>Hello Mr. "+ parms.get("name") +"</p>"+
"</body> ";
}
html +="</html>";
return newFixedLengthResponse(html);
}
else if(uri.equals("/postmethod")){
String html="<html><head><h1>Welcome to the Form</h1><head/><body>";
Map<String, String> files = new HashMap<String, String>();
Method method = session.getMethod();
String postParameter="";
html +="<form action='' method='post'> \n " +
"<p>Enter Your Name:</p> <input type='text' name='name'>" +
"</form>";
if (Method.POST.equals(method) || Method.PUT.equals(method)) {
try {
session.parseBody(files);
} catch (IOException ioe) {
try {
// return newFixedLengthResponse(Response.Status.INTERNAL_ERROR, MIME_PLAINTEXT, "SERVER INTERNAL ERROR: IOException: " + ioe.getMessage());
} catch (Exception e) {
e.printStackTrace();
Log.d("Exception", e.getMessage());
}
} catch (ResponseException re) {
try {
// return newFixedLengthResponse(re.getStatus(), MIME_PLAINTEXT, re.getMessage());
} catch (Exception e) {
e.printStackTrace();
Log.d("Exception", re.getMessage());
}
}
}
html +="</body></html>";
String postBody = session.getQueryParameterString();
postParameter = session.getParms().get("name");
Log.d("Postbody",postBody+"\n"+postParameter);
if(postParameter!=null){
String html1="<html><head><h1>"+ postParameter +"</h1><head></html>";
return newFixedLengthResponse(html1);
}
return newFixedLengthResponse(Response.Status.OK,"text/html",html);
}
else if(uri.equals("/Open_rap")){
File root= Environment.getExternalStorageDirectory();
FileInputStream fis = null;
File file = new File(root.getAbsolutePath() + "/www/messi.jpg");
Log.d("Path",root.getAbsolutePath());
try{
if(file.exists())
{
fis = new FileInputStream(file);
}
else
Log.d("FOF :", "File Not exists:");
}catch (FileNotFoundException e)
{
e.printStackTrace();
}
return newFixedLengthResponse(Response.Status.OK,"image/jpeg",fis, file.length() );
}
else {
return newFixedLengthResponse(msg + "</body></html>\n");
}
}
如您所见，我已经实现了 GET 和 POST 方法。您可以在这部分代码中找到每一个uri.equals("/getmethod")和uri.equals("/getmethod").
此外，您可以看到部分 --> uri.equals("/openrap") ，在这里我向客户端的浏览器提供 JPG 文件，图像位于/www/文件夹的内部目录中。
如果您有任何疑问，请联系我。