暑假已经过了一半了，这才完成计划当中的第二个任务。虽然进度是慢了点。但也算是暑假的收获吧。下面我就把我学习当中的收获记录在此。
还是跟以往一样，先上图片。
操作的步骤：打开程序----》选择上传的照片-----》点击返回键------》显示没有选择上传图片的toast------》点击上传的图片-----》打印图片的存储的物理路径----》询问是否确认上传选择的图片-----》确认则显示上传成功----》取消则退出
php代码：
<?php
//上传文件进行简单错误过滤
if($_FILES[‘userfile‘][‘error‘]>0){
exit(‘上传文件有错误‘);
}
//定义存放文件的真实路径（需要手动创建）
$path = "D:/xampp/htdocs/xampp/upload/";
//定义存放上传文件的真实路径名
$name = $_FILES[‘userfile‘][‘name‘];
//将文件的名字的字符编码从utf-8转换成gb2312
$name = iconv ("UTF-8","GB2312",$name);
//将上传文件移动到指定目录文件中
$path = $path.$name;
if(move_uploaded_file($_FILES[‘userfile‘][‘tmp_name‘],$path)){
echo "文件上传成功！";
// print_r($_FILES);
}else{
echo "文件上传失败！";
$_FILES[‘userfile‘][‘tmp_name‘] ;
print_r($_FILES);
}
?>
android代码：
MainActivity.java
package com.itcast.upload;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.database.Cursor;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends Activity {
private Button btn_select;
private static final int FLAGE_LOAD_IMAGE = 1;
public static String pathName;
private UserService userService = new UserServiceImpl();
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == FLAGE_LOAD_IMAGE) {
if (data == null) {
Toast.makeText(this, "你没有选择任何图片", 1).show();
}else{
Uri uri = data.getData();
if (uri == null) {
Toast.makeText(this, "你没有选择任何图片", 1).show();
}else{
String path = null;
String[] pojo = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(uri, pojo, null, null, null);
if (cursor != null) {
int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);
cursor.moveToFirst();
path = cursor.getString(columnIndex);
cursor.close();
}
if (path != null) {
Toast.makeText(this, "图片的物理路径"+ path, 0).show();
pathName = path;
new AlertDialog.Builder(this).setTitle("提示")
.setMessage("你要上传选择的图片吗？")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
doUpload();
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
}).create().show();
}else{
Toast.makeText(this, "未能获得图片的物理路径", 0).show();
}
}
}
}
}
private void doUpload(){
new Thread(new Runnable(){
public void run(){
try{
//文件二进制数据
InputStream in = new FileInputStream(new File(pathName));
//普通字符串数据
Map<String,String> data = new HashMap<String,String>();
final String result = userService.userUpload(in, data);
runOnUiThread(new Runnable(){
public void run(){
Toast.makeText(MainActivity.this, result, 1).show();
}
});
}catch(Exception e){
e.printStackTrace();
runOnUiThread(new Runnable(){
public void run(){
Toast.makeText(MainActivity.this, "上传错误", 1).show();
}
});
}
}
}).start();
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.btn_select = (Button) this.findViewById(R.id.btn_select);
this.btn_select.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, FLAGE_LOAD_IMAGE);
}
});
}
}
UserService.java 一个接口代码为：
package com.itcast.upload;
import java.io.InputStream;
import java.util.Map;
public interface UserService {
public String userUpload(InputStream in,Map<String,String> data)throws Exception;
}
UserServiceImpl.java 实现UserService接口
代码为：
package com.itcast.upload;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.Random;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.InputStreamBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
class UserServiceImpl implements UserService {
@Override
public String userUpload(InputStream in, Map<String, String> data)
throws Exception {
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://192.168.1.103/xampp/upData.php");
//要把数据封装到post里面去
/*Httpmine*/
MultipartEntity entity = new MultipartEntity();
//二进制的流文件数据对象
entity.addPart("userfile",new InputStreamBody(in, "multipart/form-data",MainActivity.pathName));
//数据放到post
post.setEntity(entity);
HttpResponse response = client.execute(post);
int statusCode = response.getStatusLine().getStatusCode();
System.out.println(statusCode);
if (statusCode != HttpStatus.SC_OK) {
}
String result = EntityUtils.toString(response.getEntity(), HTTP.UTF_8);
return result;
}
}
需要添加的权限有：
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.INTERNET"/>
至此，android端的代码书写完毕。
下面是浏览器端的代码：
upload.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script type="text/javascript">
//通过页面加载事件实现上传文件时显示进度条
function sub(){
//实现Ajax对象
var obj = new XMLHttpRequest();
//接收响应的信息
obj.onreadystatechange = function(){
if(obj.readyState == 4 && obj.status == 200){
document.getElementById(‘con‘).innerHTML = obj.responseText;
}
}
//onprogress 属性通过主浏览器的“事件对象evt”感知当前附件上传情况
obj.upload.onprogress = function(evt){
//上传附件大小的百分比
//其中evt.total 表示附件的总大小 evt.loaded表示已经上传附件大小
var per = Math.floor((evt.loaded/evt.total)*100)+"%";
//当前上传文件时，显示进度条
document.getElementById(‘parent‘).style.display = ‘block‘;
//通过上传百分比设置进度条样式的宽度
document.getElementById(‘son‘).style.width = per;
//在进度条上显示上传的进度值
document.getElementById(‘son‘).innerHTML = per;
}
//通过FormData 收集零散的上传文件信息
var fm = document.getElementById("userfile3").files[0];
var fd = new FormData();
fd.append(‘userfile‘,fm);
obj.open(‘post‘,‘upData.php‘);
obj.send(fd);
}
</script>
<style type="text/css">
#parent {
width:200px;
height:20px;
border:2px solid gray;
background:lightgray;
display:none;
}
#son{
width:0;
height:100%;
background:lightgreen;
text-align:center;
}
</style>
</head>
<body>
<h2> Ajax实现进度条上传文件</h2>
<div id="parent">
<div id="son"></div>
</div>
<p id="con"></p>
<input type="file" name="userfile" id="userfile3" />
<br /><br />
<input type="button" onclick="sub()" value="文件上传"/>
</body>
</html>
遇到的问题：
解决的办法是修改android端的代码：
解决的办法是：
时间： 2024-12-29 05:28:46