Jfinal 实现从数据库中提取图片

package test;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Mytestt {
private static final String REGEX = "\\bcat\\b";
private static final String INPUT = "cat cat cat cattie cat";

private static final String regex2 ="[\"|\'].{0,6}[^\":<>]*\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga|js|htm)[\'|\"]?";
private static final String str1 = "src=\"/1.png\" ";
private static final String str2 = "<img src=\"http://www.tuozou.com/Uploads/editor/2016-01-04/5689b6bb41ce1.png\" 123132134545>"
+"\'http://ad.topthink.com/Uploads/Picture/2016-02-04/56b2b9351f787.jpg\'"
+"src=\"/5689b6bb41ce1.png\" 123132134545>";

public static void main(String args[]) {
Pattern p = Pattern.compile(regex2);
Matcher m = p.matcher(str2); // 获取 matcher 对象
int count = 0;

while (m.find()) {
//			count++;
System.out.println("Match number " + count+":	"+m.group());
System.out.println("start(): " + m.start());
System.out.println("end(): " + m.end());
}
}
}

需求：jfinal博客项目中 只有文字链接 没有相关的图文显示 目前需要将文章中的图片提取出来并且显示到jfinal项目中

思路：1 实现从数据库中获取到content字段的内容

2 获取数据库中 content字段的 src匹配 这里必须用正则校验 获取到图片 然后将第一张 地址取出

3 在View 页面中显示的时候将src部分的链接 替换 显示就OK

代码：这个test 已经实现从数据中提取出图片地址 备忘下

效果如下 ：

"http://www.tuozou.com/Uploads/editor/2016-01-04/5689b6bb41ce1.png"

"/1.png"

package test;

import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.demo.common.model.Blog;

import freemarker.core._RegexBuiltins.replace_reBI;

public class getPic {

String str = "4564646";

public static void getpic(String str) {
String regex = "[1-9]\\d{4,9}";
boolean flag = str.matches(regex);
if (flag) {
System.out.println(str + "OK");
} else {
System.out.println(str + "no");
}
}
/**
* <img width="728" height="90" src="http://ad.topthink.com/Uploads/Picture/2015-12-24/567b6ee6edea0.jpg" alt="阿里云">
* String regex = "\<img+\>"; \\w+\\.(gif|jpg|jpeg|bmp|png)
* @param str
*/
//("/(src)=([\"|']?)([^ \"'>]+\.(gif|jpg|jpeg|bmp|png))\\2/i"

public static String getpiclink(String regex,String str){
String regex2 = "^src\\.$";
Pattern compile = Pattern.compile(regex);
Matcher matcher = compile.matcher(str);
//		System.out.println(matcher.matches());
while (matcher.find()) {

System.out.println(matcher.group());
return matcher.group();
}
return "123";

}

public static String getcontent(String regex,int id){

List<Blog> list = Blog.me.find("SELECT content FROM `blog` where id = ? LIMIT 0, 100;",id);

String str = list.get(0).toString();
String getpiclink = getpiclink(regex,str);
return getpiclink;
}
public static void main(String[] args) {
//		String regex = "((src)=([\"|']?)(\\w+).+\\w+\\.(gif|jpg|jpeg|bmp|png)([\"|']?)$)|(^(src)=([\"|']?).+\\w+\\.(gif|jpg|jpeg|bmp|png)([\"|']?)$)";
String regex = "(src)=[^\":<>]*.+\\.(gif|jpg|jpeg|bmp|png)";

//		String regex2 ="(src)=([\"|']?)(\\w+).+\\w+\\.(gif|jpg|jpeg|bmp|png)$([\"|']?)";
/**
* (src)=([\"|']?)	(\\w+).+\\w+\\.(gif|jpg|jpeg|bmp|png)\\2|
* (src)=([\"|']?)	.+\\w+\\.(gif|jpg|jpeg|bmp|png)
*/
//		getpic("ming tian jiu yao fang jia le");
/**
* <img src="/ueditor/jsp/upload/image/20160316/1458122401687030365.jpg" style="box-sizing: inherit; border: 1px solid rgba(0, 0, 0, 0.0980392); max-width: 100%; cursor: pointer; padding: 10px; display: inline-block !important; background-color: rgb(255, 255, 255);">
*/
//		String regex1 = "http://[^\":<>]*\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga|js|htm)";
String regex2 ="\".{0,6}[^\":<>]*\\.(jpg|bmp|gif|ico|pcx|jpeg|tif|png|raw|tga|js|htm)\"";

String str1 = "src=\"/1.png\" ";
getpiclink(regex2,"<img src=\"http://www.tuozou.com/Uploads/editor/2016-01-04/5689b6bb41ce1.png\" 123132134545>"
+"http://ad.topthink.com/Uploads/Picture/2016-02-04/56b2b9351f787.jpg"
+"src=\"/5689b6bb41ce1.png\" 123132134545>");

getpiclink(regex2, str1);
}
}