在Java中，response.write()方法用于将数据写入HTTP响应的输出流。以下是使用response.write()的示例：
import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class MyServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); // 设置响应的内容类型为HTML response.setCharacterEncoding("UTF-8"); // 设置响应的字符编码为UTF-8 String message = "Hello, World!"; response.getWriter().write(message); // 将消息写入响应的输出流 } } <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>My JSP Page</title> </head> <body> <% String message = "Hello, World!"; response.getWriter().write(message); // 将消息写入响应的输出流 %> </body> </html> 无论是使用Servlet API还是JSP页面，都需要获取响应对象response，并调用response.getWriter()方法来获取输出流，然后使用write()方法将数据写入输出流。在上述示例中，将字符串"Hello, World!"写入了响应的输出流中。
