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？

[c水滴石穿]

public static String getAddress(final InputStream inputStream, final String mobile) {
		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); // 设置允许输出
					conn.setConnectTimeout(5 * 1000); // 设置超时时间为5秒
					conn.setRequestMethod("POST");
					conn.setRequestProperty("Content-Type",
							"application/soap+xml; charset=utf-8");
					conn.setRequestProperty("Content-Length",
							String.valueOf(data.length)); // 设置长度

					OutputStream outputStream = conn.getOutputStream();
					outputStream.write(data);
					outputStream.flush();
					outputStream.close();

					if (conn.getResponseCode() == 200) {
						address =parseResponseXML(conn
								.getInputStream()); // 解析服务器端返回的数据 }
						System.out.println("address=="+address);//这里是有值
					}
				} catch (Exception e) {
					Log.e(TAG, e.toString());
					System.out.println("获取手机号码归属地失败");
				}
			};
		}.start();
		System.out.println("addres"+address);//这里返回的是空
		return address;
	}

[c水滴石穿]

引用 1 楼 Java_Devil 的回复:

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 ;
      }

[绝世酱油瓶]

引用 2 楼 sdsccyy 的回复:

[quote=引用 1 楼 Java_Devil 的回复:] 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 ;
      }

[/quote] 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。

[绝世酱油瓶]

address 直接定义成全局变量 不就行了？

[west0211053]

楼主解决方法里哪里定义了address？？