如何獲取url html內容到java中的字符串

Question

我有一個html文件存儲在服務器上。我有這樣的URL路徑：<https://localhost:9443/genesis/Receipt/Receipt.html >

我想從網址即html文件的源代碼中讀取此html文件的內容，該文件將包含標籤。

我該怎麼做？這是一個服務器端代碼，不能有瀏覽器對象，我不確定使用URLConnection會是一個不錯的選擇。

現在最好的解決方案是什麼？

Answer 1

使用它春天 加豆到Spring配置文件

<bean id = "receiptTemplate" class="org.springframework.core.io.ClassPathResource"> 
    <constructor-arg value="/WEB-INF/Receipt/Receipt.html"></constructor-arg> 
    </bean> 

解決然後在我的方法中讀取它

 // read the file into a resource 
     ClassPathResource fileResource = 
      (ClassPathResource)context.getApplicationContext().getBean("receiptTemplate"); 
     BufferedReader br = new BufferedReader(new FileReader(fileResource.getFile())); 
     String line; 
     StringBuffer sb = 
      new StringBuffer(); 

     // read contents line by line and store in the string 
     while ((line = 
      br.readLine()) != null) { 
      sb.append(line); 
     } 
     br.close(); 
     return sb.toString(); 

Answer 2

對於爲例：

 URL url = new URL("https://localhost:9443/genesis/Receipt/Receipt.html"); 
     URLConnection con = url.openConnection(); 
     BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream())); 
     String l; 
     while ((l=in.readLine())!=null) { 
      System.out.println(l); 
     } 

你可以使用InputStream的其他方式，而不僅僅是打印。

當然，如果你有路徑到本地文件，你也可以做

InputStream in = new FileInputStream(new File(yourPath)); 

Answer 3

import java.net.*; 
import java.io.*; 

//... 

URL url = new URL("https://localhost:9443/genesis/Receipt/Receipt.html"); 
url.openConnection(); 
InputStream reader = url.openStream(); 

Answer 4

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.MalformedURLException; 
import java.net.URL; 
import java.net.URLConnection; 

public class URLConetent{ 
    public static void main(String[] args) { 

     URL url; 

     try { 
      // get URL content 

      String a="http://localhost:8080//TestWeb/index.jsp"; 
      url = new URL(a); 
      URLConnection conn = url.openConnection(); 

      // open the stream and put it into BufferedReader 
      BufferedReader br = new BufferedReader(
           new InputStreamReader(conn.getInputStream())); 

      String inputLine; 
      while ((inputLine = br.readLine()) != null) { 
        System.out.println(inputLine); 
      } 
      br.close(); 

      System.out.println("Done"); 

     } catch (MalformedURLException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 

    } 
}