Java不使用第三方类库实现REST调用
本帖最后由 qimaguang 于 2013-05-07 16:10 编辑目前REST接口使用越来越广泛，也有很多实现REST调用的第三方类库，但是有时在项目中只是调用一个简单的REST接口获取一些数据，那么就没有必要使用第三方类库了，可以直接使用java类库来实现，比较简单，代码如下：
import java.io.*;
import java.net.*;
public class RESTUtil {
public String load(String url,String query) throws Exception
{
URL restURL = new URL(url);
HttpURLConnection conn = (HttpURLConnection) restURL.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setAllowUserInteraction(false);
PrintStream ps = new PrintStream(conn.getOutputStream());
ps.print(query);
ps.close();
BufferedReader bReader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line,resultStr="";
while(null != (line=bReader.readLine()))
{
resultStr +=line;
}
bReader.close();
return resultStr;
}
publicstatic void main(String []args) {
try {
RESTUtil restUtil = new RESTUtil();
String resultString = restUtil.load("//http://www.cdtarena.com/TrafficflowCommon/Handler.ashx","param1=d¶m2=e");
} catch (Exception e) {
// TODO: handle exception
System.out.print(e.getMessage());
}
}
}
import java.io.*;
import java.net.*;
public class RESTUtil {
public String load(String url,String query) throws Exception
{
URL restURL = new URL(url);
HttpURLConnection conn = (HttpURLConnection) restURL.openConnection();
conn.setRequestMethod("POST");
conn.setDoOutput(true);
conn.setAllowUserInteraction(false);
PrintStream ps = new PrintStream(conn.getOutputStream());
ps.print(query);
ps.close();
BufferedReader bReader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line,resultStr="";
while(null != (line=bReader.readLine()))
{
resultStr +=line;
}
bReader.close();
return resultStr;
}
publicstatic void main(String []args) {
try {
RESTUtil restUtil = new RESTUtil();
String resultString = restUtil.load("http://58.33.45.112:port/TrafficflowCommon/Handler.ashx","param1=d¶m2=e");
} catch (Exception e) {
// TODO: handle exception
System.out.print(e.getMessage());
}
}
}
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