验证码组件开发

wuxw7

2019-03-20 25d7cfbfe9caae97f88f671bd9a95d4fa2452626

 WebService/src/main/java/com/java110/web/smo/impl/LoginServiceSMOImpl.java

@@ -15,6 +15,10 @@
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Random;

/**
 * 登录信息实现类
 * Created by wuxw on 2019/3/20.
@@ -25,6 +29,11 @@
    private final static Logger logger = LoggerFactory.getLogger(LoginServiceSMOImpl.class);


    private static char[] chs = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789".toCharArray();
    private static final int NUMBER_OF_CHS = 4;
    private static final int IMG_WIDTH = 65;
    private static final int IMG_HEIGHT = 25;
    private static Random r = new Random();
    @Autowired
    private RestTemplate restTemplate;

@@ -49,6 +58,37 @@
        return responseEntity;
    }

    /**
     * 生成验证码
     * 参考地址：https://www.cnblogs.com/happyfans/p/4486010.html
     * @param pd 页面请求对象
     * @return
     */
    @Override
    public ResponseEntity<String> generateValidateCode(IPageData pd) {



        BufferedImage image = new BufferedImage(IMG_WIDTH, IMG_HEIGHT, BufferedImage.TYPE_INT_RGB);    // 实例化BufferedImage
                    Graphics g = image.getGraphics();
                    Color c = new Color(200, 200, 255);                                             // 验证码图片的背景颜色
                    g.setColor(c);
                    g.fillRect(0, 0, IMG_WIDTH, IMG_HEIGHT);                                        // 图片的边框

                    StringBuffer sb = new StringBuffer();                                           // 用于保存验证码字符串
                    int index;                                                                      // 数组的下标
                    for (int i = 0; i < NUMBER_OF_CHS; i++) {
                            index = r.nextInt(chs.length);                                              // 随机一个下标
                            g.setColor(new Color(r.nextInt(88), r.nextInt(210), r.nextInt(150)));       // 随机一个颜色
                            g.drawString(chs[index] + "", 15 * i + 3, 18);                              // 画出字符
                            sb.append(chs[index]);                                                      // 验证码字符串
                        }

                    /*request.getSession().setAttribute("piccode", sb.toString());                    // 将验证码字符串保存到session中
                    ImageIO.write(image, "jpg", response.getOutputStream());*/
        return null;
    }

    public RestTemplate getRestTemplate() {
        return restTemplate;
    }