import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class UrlReader {
private String urlName = null;
private String urlString = new String();
private String temp = new String();
public UrlReader(String urlName){
this.urlName = urlName;
}
public String Read(){
try{
URL baiduURL = new URL(urlName);
URLConnection c = baiduURL.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(c.getInputStream()));
while (reader.readLine()!=null){
temp = reader.readLine();
urlString.concat(temp);
temp = null ;
}
reader.close();
}catch(IOException e){
e.getStackTrace();
}
return urlString;
}
}这个是主类
public class Test {
public static void main(String[] args){
String a = new String("http://www.baidu.com");
UrlReader reader = new UrlReader(a);
String b = reader.Read();
System.out.print(b);
}}
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
public class UrlReader {
private String urlName = null;
private String urlString = new String();
private String temp = new String();
public UrlReader(String urlName){
this.urlName = urlName;
}
public String Read(){
try{
URL baiduURL = new URL(urlName);
URLConnection c = baiduURL.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(c.getInputStream()));
while (reader.readLine()!=null){
temp = reader.readLine();
urlString.concat(temp);
temp = null ;
}
reader.close();
}catch(IOException e){
e.getStackTrace();
}
return urlString;
}
}这个是主类
public class Test {
public static void main(String[] args){
String a = new String("http://www.baidu.com");
UrlReader reader = new UrlReader(a);
String b = reader.Read();
System.out.print(b);
}}
private String temp = new String();
头一回见这种写法
(2)
while (reader.readLine()!=null){
temp = reader.readLine();
读了两行,丢了一行
(3)urlString.concat(temp);
是不是可以换用StringBuilder.append()呢?
while (reader.readLine()!=null){
temp = reader.readLine();
urlString.concat(temp);
temp = null ;
}
改成String temp ;
while ((temp = reader.readLine())!=null){
urlString = urlString.concat(temp);
}
估计是你想要的结果吧。。
while (reader.readLine()!=null){
temp = reader.readLine();//刚刚那行不为空,这里又读了一行,但这行不一定不为空
urlString.concat(temp);
temp = null ;
}