建立 test.java 程式碼：

@WebServlet("/test")
public class test extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
		PrintWriter out = response.getWriter();
		out.println("Sevlet設定中文顯示。");
	}
	
}

瀏覽器檢視：

在doGet方法中加入程式碼：

response.setContentType("text/html;charset=UTF-8");
 

test.java 程式碼如下：

public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
		response.setContentType("text/html;charset=UTF-8");
		PrintWriter out = response.getWriter();
		out.println("Sevlet設定中文顯示。");
	}

重啟Tomcat，瀏覽器檢視：