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HttpServletRequest 获取客户端ip

时间: 2023-10-23 10:12:36 浏览: 223

要使用HttpServletRequest获取客户端的IP地址，可以通过以下代码实现： ```java String ipAddress = request.getHeader("X-Forwarded-For"); if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("Proxy-Client-IP"); } if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getHeader("WL-Proxy-Client-IP"); } if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) { ipAddress = request.getRemoteAddr(); } ```

springboot 获取客户端ip

使用Spring Boot获取客户端IP，可以通过HttpServletRequest对象来获取。可以使用“@Autowired”注解自动注入HttpServletRequest对象，然后使用“getRemoteAddr()”方法获取客户端IP地址。

java 获取客户端ip

要获取客户端IP，可以使用Java Servlet的API。可以使用 `HttpServletRequest` 对象的 `getRemoteAddr()` 方法来获取客户端IP地址。以下是示例代码： ```java import javax.servlet.*; import javax.servlet.http.*; import java.io.*; public class GetClientIP extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String ipAddress = request.getRemoteAddr(); response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<html>"); out.println("<head><title>Client IP Address</title></head>"); out.println("<body>"); out.println("<h1>Client IP Address</h1>"); out.println("<p>Your IP address is " + ipAddress + "</p>"); out.println("</body></html>"); } } ``` 在上面的代码中，`getRemoteAddr()` 方法返回一个字符串，表示客户端的IP地址。

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