我是Java的新手,我正在尝试创建一个用于从Web服务获取巴西地址的lib,但我无法阅读响应。
在类的构造函数中我有这个result
字符串,我想要附加响应,一旦这个变量填充了响应,我将知道该怎么做。
问题是:出于某种原因,我猜BufferedReader
对象不起作用,因此无法读取响应:/
以下是代码:
package cepfacil;
import java.net.*;
import java.io.*;
import java.io.IOException;
public class CepFacil {
final String baseUrl = "http://www.cepfacil.com.br/service/?filiacao=%s&cep=%s&formato=%s";
private String zipCode, apiKey, state, addressType, city, neighborhood, street, status = "";
public CepFacil(String zipCode, String apiKey) throws IOException {
String line = "";
try {
URL apiUrl = new URL("http://www.cepfacil.com.br/service/?filiacao=" + apiKey + "&cep=" +
CepFacil.parseZipCode(zipCode) + "&formato=texto");
String result = "";
BufferedReader in = new BufferedReader(new InputStreamReader(apiUrl.openStream()));
while ((line = in.readLine()) != null) {
result += line;
}
in.close();
System.out.println(line);
} catch (MalformedURLException e) {
e.printStackTrace();
}
this.zipCode = zipCode;
this.apiKey = apiKey;
this.state = state;
this.addressType = addressType;
this.city = city;
this.neighborhood = neighborhood;
this.street = street;
}
}
所以这里是代码应该如何工作,你构建一个像这样的对象:
String zipCode = "53416-540";
String token = "0E2ACA03-FC7F-4E87-9046-A8C46637BA9D";
CepFacil address = new CepFacil(zipCode, token);
// so the apiUrl object string inside my class definition will look like this:
// http://www.cepfacil.com.br/service/?filiacao=0E2ACA03-FC7F-4E87-9046-A8C46637BA9D&cep=53416540&formato=texto
// which you can check, is a valid url with content in there
为简洁起见,我省略了此代码的某些部分,但构造函数中调用的所有方法都在我的代码中定义,并且没有编译或运行时错误。
我很感激你能给我的任何帮助,我很乐意听到最简单的解决方案:)
提前致谢!
更新:现在我可以解决这个问题(@Uldz指出我问题的巨大道具)它是开源的http://www.rodrigoalvesvieira.com/cepfacil/
答案 0 :(得分:1)
在
System.out.println(line + "rodrigo");
你输出的行不是结果。也许最后一行是空的?
答案 1 :(得分:0)
可能有多种原因。
将URL
包裹在HttpURLConnection
中,这有助于您查看响应代码以及有关从服务器获得的响应的更多信息。
答案 2 :(得分:0)
您可以/应该为InputStreamReader添加编码。 然后结果不会添加换行符。
BufferedReader in = new BufferedReader(new InputStreamReader(apiUrl.openStream()));
while ((line = in.readLine()) != null) {
System.out.println("Line: " + line);
String[] keyValue = line.split("\\s*=\\s*", 2);
if (keyValue.length != 2) {
System.err.println("*** Line: " + line);
continue;
}
switch (keyValue[0]) {
case "status":
status = keyValue[1];
break;
...
default:
System.err.println("*** Key wrong: " + line);
}
result += line + "\n";
}
in.close();