正则表达式1

chenweijie · chenweijie · commit ff7228e37155 · 2017-11-16T21:59:33.000+08:00
diff --git a/src/main/java/com/chen/api/util/regex/RegexTest1.java b/src/main/java/com/chen/api/util/regex/RegexTest1.java
@@ -1,6 +1,5 @@
 package com.chen.api.util.regex;
 
-import jdk.internal.util.xml.impl.Input;
 import org.junit.Test;
 
 import java.util.regex.Matcher;
diff --git a/src/main/java/com/chen/api/util/regex/RegexTest2.java b/src/main/java/com/chen/api/util/regex/RegexTest2.java
@@ -0,0 +1,147 @@
+package com.chen.api.util.regex;
+
+import org.junit.Test;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * Description:
+ *
+ * @author chenweijie
+ */
+public class RegexTest2 {
+
+    /**
+     * 匹配图片地址中的src中的内容
+     */
+    private static Pattern SRC_PATTERN = Pattern.compile("src\\s*=\\s*\"?(.*?)(\"|>|\\s+)");
+
+    /**
+     * 图片中url包含的？特殊字符
+     */
+    private static String QUESTION_MARK = "?";
+
+
+    @Test
+    public void test1() {
+
+        Pattern pattern =Pattern.compile("//(//d{3}//)//s//d{3}-//d{4}");
+        try {
+            try (BufferedReader  in = new BufferedReader(new FileReader("\testPatter.txt"))) {
+                String s ;
+                while ((s=in.readLine())!=null){
+
+                    Matcher matcher =pattern.matcher(s);
+                    if (matcher.find()){
+                        System.out.println(matcher.group());
+                    }
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    /**
+     * 解析html数据 匹配上的返回处理后的数据，匹配不上的返回 null
+     *
+     * @param text html数据
+     * @param id   主键id
+     * @return 处理完的html数据
+     */
+    private String resolveHtml(String text, Integer id) {
+
+        String img;
+        Pattern pImage;
+        Matcher mImage;
+        //图片链接地址
+        String regExImg = "<img.*src\\s*=\\s*(.*?)[^>]*?>";
+        pImage = Pattern.compile(regExImg, Pattern.CASE_INSENSITIVE);
+        mImage = pImage.matcher(text);
+        while (mImage.find()) {
+            // 得到<img />数据
+            img = mImage.group();
+            // 匹配<img>中的src数据
+            Matcher m = SRC_PATTERN.matcher(img);
+            while (m.find()) {
+                //取出图片的地址
+                String imgUlr = m.group(1);
+                //处理图片地址加上长宽参数
+                String newUrl = replaceImg(imgUlr, id);
+                //替换原内容中的标签
+                if (newUrl != null) {
+                    text = text.replace(imgUlr, newUrl);
+                } else {
+                    return null;
+                }
+            }
+
+            return text;
+        }
+        return null;
+    }
+
+
+    /**
+     * 处理某一张图片的格式
+     *
+     * @param imageUrl 原图片的url
+     * @param id       图片对应的id
+     */
+    private String replaceImg(String imageUrl, Integer id) {
+
+        BufferedImage image = getBufferedImage(id, imageUrl);
+        String mewImgURL = null;
+        if (image != null) {
+            int height = image.getHeight();
+            int width = image.getWidth();
+
+            if (imageUrl.contains(QUESTION_MARK)) {
+                mewImgURL = imageUrl + "&width=" + width + "&height=" + height;
+            } else {
+                mewImgURL = imageUrl + "?width=" + width + "&height=" + height;
+            }
+        }
+        return mewImgURL;
+    }
+
+    /**
+     * 根据imgUrl获取BufferedImage对象
+     *
+     * @param id     id
+     * @param imgUrl 图片地址
+     * @return BufferedImage对象
+     */
+    private static BufferedImage getBufferedImage(Integer id, String imgUrl) {
+        URL url;
+        InputStream is = null;
+        BufferedImage img = null;
+        try {
+            url = new URL(imgUrl);
+            is = url.openStream();
+            img = ImageIO.read(is);
+        } catch (IOException e) {
+            System.out.println("handleAnalysisPicture failed");
+        } finally {
+            try {
+                if (is != null) {
+                    is.close();
+                }
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return img;
+    }
+
+
+}
diff --git a/src/main/java/com/chen/api/util/regex/TestRegularExpression.java b/src/main/java/com/chen/api/util/regex/TestRegularExpression.java
@@ -0,0 +1,34 @@
+package com.chen.api.util.regex;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * 测试正则表达式类
+ *
+ * @author Chen WeiJie
+ * @date 2017-11-16 21:31
+ **/
+public class TestRegularExpression {
+
+
+    //http://blog.csdn.net/allwefantasy/article/details/3136570/
+    public static void main(String[] args) {
+
+        if (args.length < 2) {
+            System.out.println("输入的字符串为空！");
+            System.exit(0);
+        }
+        System.out.println("输入的字符串为： \"" + args[0] + "\"");
+        for (int i = 1; i < args.length; i++) {
+            System.out.println("正则表达式为: \"" + args[i] + "\"");
+            Pattern p = Pattern.compile(args[i]);
+            Matcher m = p.matcher(args[0]);
+            while (m.find()) {
+                System.out.println("Match \"" + m.group() + "\" at positions " + m.start() + "-" + (m.end() - 1));
+            }
+        }
+    }
+
+
+}
diff --git a/src/main/resources/testPatter.txt b/src/main/resources/testPatter.txt
@@ -0,0 +1,4 @@
+(212) 555-1212
+(212) 543-1212
+(212) 458-1212
+(212) 545-1212
