之前发过一个

JFinal 自动探测Model 注册插件 AutoScanPlugin

http://my.oschina.net/b1412/blog/67764

然后参考了 @Flio 对我的代码做出的扩展

jfinal的Model自动绑定表插件

http://www.oschina.net/code/snippet_591384_12022

现在整合下代码采用@Flio的插件命名，并且重构了一下搜索类的代码。

类探测api如下方便以后其类探测的使用.

List<Class> classList = ClassSearcher.findClasses(Model.class);

插件注册代码,由于AutoTableBindPlugin继承自ActiveRecordPlugin,所以不需要单独注册它了.

主要数据库连接池插件要在AutoTableBindPlugin之前注册.

public void configPlugin(Plugins me) {DruidPlugin druidPlugin = new DruidPlugin.DruidBuilder(getProperty("url"), getProperty("username"),getProperty("password")).build();AutoTableBindPlugin autoTableBindPlugin = new AutoTableBindPlugin(druidPlugin, TableNameStyle.LOWER);autoTableBindPlugin.setShowSql(true);SqlReporter.setLogger(true);SqlInXmlPlugin sqlInXmlPlugin = new SqlInXmlPlugin();QuartzPlugin quartzPlugin = new QuartzPlugin();me.add(druidPlugin).add(sqlInXmlPlugin).add(autoTableBindPlugin).add(quartzPlugin);}

目前之内探测/classes下的类，如果是/lib下jar包中的类还不能探测。

之前做过运行动态修改字节码的工具，是吧lib下的jar解压出来然后修改了打包回去。如果需要探测jar中类是否为Model子类是否必须坐jar包解压的工作？大家有什么好的方案么？这个问题弄清楚了再加上扫描jar包中Model的工作。

目前如果是有项目吧class文件打成jar包部署的朋友暂时无法使用自动探测绑定的功能...

package com.jfinal.plugin.tablebind;import java.util.List;import javax.sql.DataSource;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import com.jfinal.plugin.activerecord.ActiveRecordPlugin;
import com.jfinal.plugin.activerecord.IDataSourceProvider;
import com.jfinal.plugin.activerecord.Model;
import com.jfinal.util.StringKit;public class AutoTableBindPlugin extends ActiveRecordPlugin {private TableNameStyle tableNameStyle;private Logger logger = LoggerFactory.getLogger(getClass());public AutoTableBindPlugin(DataSource dataSource) {super(dataSource);}public AutoTableBindPlugin(IDataSourceProvider dataSourceProvider, TableNameStyle tableNameStyle) {super(dataSourceProvider);this.tableNameStyle = tableNameStyle;}@Overridepublic boolean start() {try {List<Class> modelClasses = ClassSearcher.findClasses(Model.class);logger.debug("modelClasses.size  {}",modelClasses.size());TableBind tb = null;for (Class modelClass : modelClasses) {tb = (TableBind) modelClass.getAnnotation(TableBind.class);if (tb == null) {this.addMapping(tableName(modelClass), modelClass);logger.debug("auto bindTable: addMapping({}, {})", tableName(modelClass), modelClass.getName());} else {if (StringKit.notBlank(tb.pkName())) {this.addMapping(tb.tableName(), tb.pkName(), modelClass);logger.debug("auto bindTable: addMapping({}, {},{})", new Object[]{tb.tableName(),tb.pkName(), modelClass.getName()});} else {this.addMapping(tb.tableName(), modelClass);logger.debug("auto bindTable: addMapping({}, {})", tb.tableName(), modelClass.getName());}}}} catch (Exception e) {throw new RuntimeException(e);}return super.start();}@Overridepublic boolean stop() {return super.stop();}private String tableName(Class<?> clazz) {String tableName = clazz.getSimpleName();if (tableNameStyle == TableNameStyle.UP) {tableName = tableName.toUpperCase();} else if (tableNameStyle == TableNameStyle.LOWER) {tableName = tableName.toLowerCase();} else {tableName = StringKit.firstCharToLowerCase(tableName);}return tableName;}
}

package com.jfinal.plugin.tablebind;import java.lang.annotation.ElementType;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;@Inherited
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.TYPE})
public  @ interface  TableBind {String tableName();String pkName() default "";
}

package com.jfinal.plugin.tablebind;import java.io.File;import java.net.URL;import java.util.ArrayList;import java.util.List;public class ClassSearcher {private static List<File> classFiles;/*** 递归查找文件* * @param baseDirName*            查找的文件夹路径* @param targetFileName*            需要查找的文件名*/private  static List<File> findFiles(String baseDirName, String targetFileName) {/*** 算法简述： 从某个给定的需查找的文件夹出发，搜索该文件夹的所有子文件夹及文件，* 若为文件，则进行匹配，匹配成功则加入结果集，若为子文件夹，则进队列。 队列不空，重复上述操作，队列为空，程序结束，返回结果。*/classFiles = new ArrayList<File>();String tempName = null;// 判断目录是否存在File baseDir = new File(baseDirName);if (!baseDir.exists() || !baseDir.isDirectory()) {System.out.println("文件查找失败：" + baseDirName + "不是一个目录！");} else {String[] filelist = baseDir.list();for (int i = 0; i < filelist.length; i++) {File readfile = new File(baseDirName + File.separator+ filelist[i]);if (!readfile.isDirectory()) {tempName = readfile.getName();if (ClassSearcher.wildcardMatch(targetFileName, tempName)) {classFiles.add(readfile.getAbsoluteFile());}} else if (readfile.isDirectory()) {classFiles.addAll(findFiles(baseDirName + File.separator+ filelist[i], targetFileName));}}}return classFiles;}public static List<Class> findClasses(Class clazz) {List<Class> classList = new ArrayList<>();URL classPathUrl = ClassSearcher.class.getResource("/");List<File> classFileList = findFiles(classPathUrl.getFile(), "*.class");String lib = new File(classPathUrl.getFile()).getParent() + "/lib/";for (File classFile : classFileList) {String className = className(classFile, "/classes");try {Class<?> classInFile = Class.forName(className);if (classInFile.getSuperclass() == clazz) {classList.add(classInFile);}} catch (ClassNotFoundException e) {e.printStackTrace();}}return classList;}private static String className(File classFile, String pre) {String objStr = classFile.toString().replaceAll("\\\\", "/");String className;className = objStr.substring(objStr.indexOf(pre) + pre.length(),objStr.indexOf(".class"));if (className.startsWith("/")) {className = className.substring(className.indexOf("/") + 1);}return className.replaceAll("/", ".");}/*** 通配符匹配* * @param pattern*            通配符模式* @param str*            待匹配的字符串* @return  匹配成功则返回true，否则返回false*/private static boolean wildcardMatch(String pattern, String str) {int patternLength = pattern.length();int strLength = str.length();int strIndex = 0;char ch;for (int patternIndex = 0; patternIndex < patternLength; patternIndex++) {ch = pattern.charAt(patternIndex);if (ch == '*') {// 通配符星号*表示可以匹配任意多个字符while (strIndex < strLength) {if (wildcardMatch(pattern.substring(patternIndex + 1),str.substring(strIndex))) {return true;}strIndex++;}} else if (ch == '?') {// 通配符问号?表示匹配任意一个字符strIndex++;if (strIndex > strLength) {// 表示str中已经没有字符匹配?了。return false;}} else {if ((strIndex >= strLength) || (ch != str.charAt(strIndex))) {return false;}strIndex++;}}return (strIndex == strLength);}}

package com.jfinal.plugin.tablebind;public enum TableNameStyle {UP, LOWER, UP_UNDERLINE, LOWER_UNDERLINE
}