Java 服务器返回HTTP响应代码：500，Android中带有HttpUrlConnection

我正在使用以下代码将一些数据发布到特定的

URL

：

import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;

public class LookupPOST {

public static void main(String[] args) throws Exception 
{
        String accountlookup = "<account>"+
                                "<name>N*</name>"+
                                "<type></type>"+
                                "<accountaddress>"+
                                    "<address></address>"+
                                    "<state></state>"+
                                    "<zip></zip>"+
                                    "<city></city>"+
                                    "<country></country>"+
                                    "<county></county>"+
                                "</accountaddress>"+
                               "</account>";

        URL url = new URL(" http://localhost:8080/Sfacgi/accounts/lookUpaccount");
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("authenticate", "BBUSER1:BBUSER1");
        connection.setRequestProperty("Content-Type", "application/xml");
        connection.setRequestProperty("pinno", "2526121F96");
        connection.setRequestProperty("appversion", "BBV15");
        connection.setDoOutput(true);
        connection.setInstanceFollowRedirects(false);

         OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
         writer.write(accountlookup);
         writer.close();

         if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) 
         {
             System.out.println(" Success ");
         } 
         else 
         {
             System.out.println("Server returned HTTP error code :"+connection.getResponseCode());
         }

}}

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class LookupGet 
{

    public static void main(String[] args) throws Exception 
{   
    try
    {
        URL url = new URL("http://localhost:8080/Sfacgi/accounts/lookUpaccount");
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty("authenticate", "BBUSER1:BBUSER1");
        connection.setRequestProperty("Content-Type", "application/xml");
        connection.setRequestProperty("pinno", "2526121F96");
        connection.setRequestProperty("appversion", "BBV15");
        connection.setDoOutput(true);
        connection.setInstanceFollowRedirects(false);
        int timeoutMs=500000;
        connection.setConnectTimeout(timeoutMs);
        connection.setReadTimeout(timeoutMs);

        //InputStream is = url.openStream();

        InputStream is1 = connection.getInputStream();

        BufferedReader reader = new BufferedReader(new InputStreamReader(is1));

            String data;

            while ((data = reader.readLine()) != null) 
            {
                 System.out.println(data);
            }
            reader.close();

    }
    catch(Exception e)
    {
        System.out.println(" Excpetion = " + e);
        e.printStackTrace();        
    }
}}

我正在使用以下代码：

import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;

public class LookupPOST {

public static void main(String[] args) throws Exception 
{
        String accountlookup = "<account>"+
                                "<name>N*</name>"+
                                "<type></type>"+
                                "<accountaddress>"+
                                    "<address></address>"+
                                    "<state></state>"+
                                    "<zip></zip>"+
                                    "<city></city>"+
                                    "<country></country>"+
                                    "<county></county>"+
                                "</accountaddress>"+
                               "</account>";

        URL url = new URL(" http://localhost:8080/Sfacgi/accounts/lookUpaccount");
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("POST");
        connection.setRequestProperty("authenticate", "BBUSER1:BBUSER1");
        connection.setRequestProperty("Content-Type", "application/xml");
        connection.setRequestProperty("pinno", "2526121F96");
        connection.setRequestProperty("appversion", "BBV15");
        connection.setDoOutput(true);
        connection.setInstanceFollowRedirects(false);

         OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
         writer.write(accountlookup);
         writer.close();

         if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) 
         {
             System.out.println(" Success ");
         } 
         else 
         {
             System.out.println("Server returned HTTP error code :"+connection.getResponseCode());
         }

}}

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class LookupGet 
{

    public static void main(String[] args) throws Exception 
{   
    try
    {
        URL url = new URL("http://localhost:8080/Sfacgi/accounts/lookUpaccount");
        HttpURLConnection connection = (HttpURLConnection)url.openConnection();
        connection.setRequestMethod("GET");
        connection.setRequestProperty("authenticate", "BBUSER1:BBUSER1");
        connection.setRequestProperty("Content-Type", "application/xml");
        connection.setRequestProperty("pinno", "2526121F96");
        connection.setRequestProperty("appversion", "BBV15");
        connection.setDoOutput(true);
        connection.setInstanceFollowRedirects(false);
        int timeoutMs=500000;
        connection.setConnectTimeout(timeoutMs);
        connection.setReadTimeout(timeoutMs);

        //InputStream is = url.openStream();

        InputStream is1 = connection.getInputStream();

        BufferedReader reader = new BufferedReader(new InputStreamReader(is1));

            String data;

            while ((data = reader.readLine()) != null) 
            {
                 System.out.println(data);
            }
            reader.close();

    }
    catch(Exception e)
    {
        System.out.println(" Excpetion = " + e);
        e.printStackTrace();        
    }
}}

---

有人能告诉我我的代码哪里错了吗？任何建议。

通过查看您的代码，我认为您正在尝试从您的

localHost

如果要连接到本地主机，必须指定计算机的IP地址 比如说

URL url = new URL("http://IPAddressOfComputer/Sfacgi/accounts/lookUpaccount");

Localhost是可访问的，因为您可以执行post调用

错误代码500表示您的服务器由于任何原因无法处理该请求。可能是某些异常或URL未映射

如果出现异常，请读取ErrorStream方法而不是Inputstream以了解错误 例子 connection.getErrorStream（）

---

如果使用浏览器发送请求，会发生什么情况？GET请求一般有效吗？您使用的是本地主机url，如果无法连接，请先在设备浏览器上尝试该url。