java get 请求带参数

Java 实现Get请求带参数的概览

在Java中发送Get请求并携带参数的过程可分为以下步骤：

1. 创建URL对象，并指定要求的URL地址。
2. HtttpURLConection对象是通过URL对象的openconection创建的。
3. 设置请求的方法是GET。
4. 添加请求参数，并将参数拼接到URL中。
5. 设置请求头信息。
6. 发送请求并获得响应。
7. 处理响应数据。

下面将详细说明每一步需要做什么，并提供相应的代码示例。

import java.net.URL;try {    URL url = new URL("    // 这里的URL地址是请求的目标地址，用实际要求的URL地址取代} catch (MalformedURLException e) {    e.printStackTrace();}

import java.io.IOException;import java.net.HttpURLConnection;import java.net.URL;try {    URL url = new URL("    HttpURLConnection connection = (HttpURLConnection) url.openConnection();} catch (IOException e) {    e.printStackTrace();}

import java.io.IOException;import java.net.HttpURLConnection;import java.net.URL;try {    URL url = new URL("    HttpURLConnection connection = (HttpURLConnection) url.openConnection();    connection.setRequestMethod("GET");} catch (IOException e) {    e.printStackTrace();}

import java.io.IOException;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;try {    String param1 = "value1";    String param2 = "value2";    URL url = new URL(" + URLEncoder.encode(param1， "UTF-8") + "&param2=" + URLEncoder.encode(param2， "UTF-8"));    HttpURLConnection connection = (HttpURLConnection) url.openConnection();    connection.setRequestMethod("GET");} catch (IOException e) {    e.printStackTrace();}

import java.io.IOException;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;try {    String param1 = "value1";    String param2 = "value2";    URL url = new URL(" + URLEncoder.encode(param1， "UTF-8") + "&param2=" + URLEncoder.encode(param2， "UTF-8"));    HttpURLConnection connection = (HttpURLConnection) url.openConnection();    connection.setRequestMethod("GET");    connection.setRequestProperty("User-Agent", "Mozilla/5.0");} catch (IOException e) {    e.printStackTrace();}

import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.URL;import java.net.URLEncoder;try {    String param1 = "value1";    String param2 = "value2";    URL url = new URL(" + URLEncoder.encode(param1， "UTF-8") + "&param2=" + URLEncoder.encode(param2， "UTF-8"));    HttpURLConnection connection = (HttpURLConnection) url.openConnection();    connection.setRequestMethod("GET");    connection.setRequestProperty("User-Agent", "Mozilla/5.0");    int responseCode = connection.getResponseCode();    if (responseCode == HttpURLConnection.HTTP_OK) {        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));        String line;        StringBuilder response = new StringBuilder();        while ((line = reader.readLine()) != null) {            response.append(line);        }        reader.close();        String responseBody = response.toString();        // 处理响应数据        // responsebody可根据具体需要进行分析和处理    } else {        System.out.println("请求失败，响应码：" + responseCode);    }} catch (IOException e)