在一个有返回值的方法里使用了子线程,如何返回子线程中的值,如下代码中,我在子线程获取到了address的值,但是这个方法的返回结果是空,该如何解决? android 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 address 直接定义成全局变量 不就行了? 全局变量也是空的,因为不是在一个线程里面,解决方法是:public static String getAddress (final InputStream inputStream, final String mobile) { Thread thread = new Thread() { public void run() { try { Log. i(TAG, "inputStream: " + inputStream.available()); String soap = readSoapFile(inputStream, mobile); byte[] data = soap.getBytes(); URL url = new URL( "http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx" ); HttpURLConnection conn = (HttpURLConnection) url .openConnection(); conn.setDoOutput( true); conn.setConnectTimeout(5 * 1000); conn.setRequestMethod( "POST"); conn.setRequestProperty( "Content-Type", "application/soap+xml; charset=utf-8"); conn.setRequestProperty( "Content-Length", String. valueOf(data.length)); OutputStream outputStream = conn.getOutputStream(); outputStream.write(data); outputStream.flush(); outputStream.close(); if (conn.getResponseCode() == 200) { address =parseResponseXML(conn .getInputStream()); } } catch (Exception e) { } }; }; thread.start(); try { thread.join(); } catch (Exception e) {} if(address !=null){ return address ; } return null ; } 全局变量也是空的,因为不是在一个线程里面,解决方法是:public static String getAddress (final InputStream inputStream, final String mobile) { Thread thread = new Thread() { public void run() { try { Log. i(TAG, "inputStream: " + inputStream.available()); String soap = readSoapFile(inputStream, mobile); byte[] data = soap.getBytes(); URL url = new URL( "http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx" ); HttpURLConnection conn = (HttpURLConnection) url .openConnection(); conn.setDoOutput( true); conn.setConnectTimeout(5 * 1000); conn.setRequestMethod( "POST"); conn.setRequestProperty( "Content-Type", "application/soap+xml; charset=utf-8"); conn.setRequestProperty( "Content-Length", String. valueOf(data.length)); OutputStream outputStream = conn.getOutputStream(); outputStream.write(data); outputStream.flush(); outputStream.close(); if (conn.getResponseCode() == 200) { address =parseResponseXML(conn .getInputStream()); } } catch (Exception e) { } }; }; thread.start(); try { thread.join(); } catch (Exception e) {} if(address !=null){ return address ; } return null ; } 我一般有线程的方法都不会给方法体返回值,在线程里的http有请求返回之后,通过handler发消息去继续往下执行其他步骤。 楼主解决方法里哪里定义了address?? 学习ViewPage实现无限左右滑动 求Android小程序代码 怎么样让一个linearLayout既有边框,又能使背景色为透明 Android 分享功能 editText1的OnKey事件为什么执行两次Toast?怎么可以避免 android 定时更新数据 DefaultHttpClient不能并发连接的问题 service里循环调用问题 求这个Android UI效果的实现.... 如何裁剪一张bitmap中自己想要的区域 按钮的子菜单 android studio编译C++问题
全局变量也是空的,因为不是在一个线程里面,解决方法是:
public static String getAddress (final InputStream inputStream, final String mobile) {
Thread thread = new Thread() {
public void run() {
try {
Log. i(TAG, "inputStream: " + inputStream.available());
String soap = readSoapFile(inputStream, mobile);
byte[] data = soap.getBytes(); URL url = new URL(
"http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx" );
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setDoOutput( true);
conn.setConnectTimeout(5 * 1000);
conn.setRequestMethod( "POST");
conn.setRequestProperty( "Content-Type",
"application/soap+xml; charset=utf-8");
conn.setRequestProperty( "Content-Length",
String. valueOf(data.length)); OutputStream outputStream = conn.getOutputStream();
outputStream.write(data);
outputStream.flush();
outputStream.close();
if (conn.getResponseCode() == 200) {
address =parseResponseXML(conn
.getInputStream());
}
} catch (Exception e) {
}
};
};
thread.start();
try { thread.join(); } catch (Exception e) {}
if(address !=null){
return address ;
}
return null ;
}
全局变量也是空的,因为不是在一个线程里面,解决方法是:
public static String getAddress (final InputStream inputStream, final String mobile) {
Thread thread = new Thread() {
public void run() {
try {
Log. i(TAG, "inputStream: " + inputStream.available());
String soap = readSoapFile(inputStream, mobile);
byte[] data = soap.getBytes(); URL url = new URL(
"http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx" );
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setDoOutput( true);
conn.setConnectTimeout(5 * 1000);
conn.setRequestMethod( "POST");
conn.setRequestProperty( "Content-Type",
"application/soap+xml; charset=utf-8");
conn.setRequestProperty( "Content-Length",
String. valueOf(data.length)); OutputStream outputStream = conn.getOutputStream();
outputStream.write(data);
outputStream.flush();
outputStream.close();
if (conn.getResponseCode() == 200) {
address =parseResponseXML(conn
.getInputStream());
}
} catch (Exception e) {
}
};
};
thread.start();
try { thread.join(); } catch (Exception e) {}
if(address !=null){
return address ;
}
return null ;
}
我一般有线程的方法都不会给方法体返回值,在线程里的http有请求返回之后,通过handler发消息去继续往下执行其他步骤。