jfinal的路由如果多了,都放在一个方法里面设置很容易混淆,因此可以考虑在每个controller类上面定义,如下面的controller类,RequestMap代表类的路径,WebDir代表view的相对目录,controller类定义
package com.js.jshop.boot.controller;
import com.jfinal.core.Controller;
import com.js.common.anno.RequestMap;
import com.js.common.anno.WebDir;
import java.util.List;
@RequestMap(name="/boot/brand")
@WebDir(name="/boot/brand")
public class BrandController extends Controller{
public void hello() {
System.out.println("hello");
render("hello.html");
}
}增加两个anno,一个定义路径RequestMap,如下
package com.js.common.anno;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target({ ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface RequestMap {
public String name();
}一个定义view的相对目录WebDir
package com.js.common.anno;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Target({ ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)
public @interface WebDir {
String name();
}增加Controller包扫描类ClassUtil.java,用于读取包下controller的定义,注意这里用到的方法是提取controller类的
package com.js.common.util;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import java.net.JarURLConnection;
import java.net.URL;
import java.net.URLDecoder;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.jfinal.core.Controller;
import com.js.common.anno.RequestMap;
import com.js.common.anno.WebDir;
/**
* 类加载工具类
* @ClassName: ClassUtil
* @Description: TODO(这里用一句话描述这个类的作用)
* @author 刘楠,xlp
* @date 2017-1-12 下午4:54:19
* @date 2018-3-9
*/
public class ClassUtil {
public static void main(String[] args) {
String controllerPackageName = "com.js.jshop.boot.controller";
Set<Class<? extends Controller>> claesses=getControllerClassSet(controllerPackageName);
for(Class<?> c:claesses){
System.out.println(c.getGenericSuperclass());
System.out.println(c.getName());
RequestMap requestMap=c.getAnnotation(RequestMap.class);
WebDir webDir=c.getAnnotation(WebDir.class);
System.out.println(requestMap.name());
System.out.println(webDir.name());
}
}
private static final Logger LOGGER = LoggerFactory.getLogger(ClassUtil.class);
/**
* 获取类加载器
* @Title: getClassLoader
* @Description: TODO(这里用一句话描述这个方法的作用)
* @param @return 设定文件
* @return ClassLoader 返回类型
* @throws */
public static ClassLoader getClassLoader() {
return Thread.currentThread().getContextClassLoader();
}
/**
* 加载类
* 需要提供类名与是否初始化的标志,
* 初始化是指是否执行静态代码块
* @Title: loadClass
* @Description: TODO(这里用一句话描述这个方法的作用)
* @param @param className
* @param @param isInitialized 为提高性能设置为false
* @param @return 设定文件
* @return Class<?> 返回类型
* @throws */
public static Class<?> loadClass(String className, boolean isInitialized) {
Class<?> cls;
try {
cls = Class.forName(className, isInitialized, getClassLoader());
//Thread.currentThread().getContextClassLoader().loadClass(className);
} catch (ClassNotFoundException e) {
e.printStackTrace();
LOGGER.error("加载类失败 loadClass->{}", e);
throw new RuntimeException(e);
}
return cls;
}
public static Class<? extends Controller> loadControllerClass(String className, boolean isInitialized) {
Class<? extends Controller> cls;
try {
cls = (Class<? extends Controller>) Class.forName(className, isInitialized, getClassLoader());
//Thread.currentThread().getContextClassLoader().loadClass(className);
} catch (ClassNotFoundException e) {
e.printStackTrace();
LOGGER.error("加载类失败 loadClass->{}", e);
throw new RuntimeException(e);
}
return cls;
}
/**
* 加载指定包下的所有类
* @Title: getClassSet
* @Description: TODO(这里用一句话描述这个方法的作用)
* @param @param packageName
* @param @return 设定文件
* @return Set<Class<?>> 返回类型
* @throws */
public static Set<Class<?>> getClassSet(String packageName) {
Set<Class<?>> classSet = new HashSet<Class<?>>();
try {
Enumeration<URL> urls = getClassLoader().getResources(packageName.replace(".", "/"));
while (urls.hasMoreElements()) {
URL url = urls.nextElement();
if (url != null) {
String protocol = url.getProtocol();
if (protocol.equals("file")) {
// 转码
String packagePath = URLDecoder.decode(url.getFile(), "UTF-8");
// String packagePath =url.getPath().replaceAll("%20",
// "");
// 添加
addClass(classSet, packagePath, packageName);
} else if (protocol.equals("jar")) {
JarURLConnection jarURLConnection = (JarURLConnection) url.openConnection();
if (jarURLConnection != null) {
JarFile jarFile = jarURLConnection.getJarFile();
if (jarFile != null) {
Enumeration<JarEntry> jarEntries = jarFile.entries();
while (jarEntries.hasMoreElements()) {
JarEntry jarEntry = jarEntries.nextElement();
String jarEntryName = jarEntry.getName();
if (jarEntryName.endsWith(".class")) {
String className = jarEntryName.substring(0, jarEntryName.lastIndexOf("."))
.replaceAll("/", ".");
doAddClass(classSet, className);
}
}
}
}
}
}
}
} catch (IOException e) {
e.printStackTrace();
LOGGER.error("查找包下的类失败{}", e);
}
return classSet;
}
/**
* 加载指定包下的所有类
* @Title: getClassSet
* @Description: TODO(这里用一句话描述这个方法的作用)
* @param @param packageName
* @param @return 设定文件
* @return Set<Class<?>> 返回类型
* @throws */
public static Set<Class<? extends Controller>> getControllerClassSet(String packageName) {
Set<Class<? extends Controller>> classSet = new HashSet<Class<? extends Controller>>();
try {
Enumeration<URL> urls = getClassLoader().getResources(packageName.replace(".", "/"));
while (urls.hasMoreElements()) {
URL url = urls.nextElement();
if (url != null) {
String protocol = url.getProtocol();
if (protocol.equals("file")) {
// 转码
String packagePath = URLDecoder.decode(url.getFile(), "UTF-8");
// String packagePath =url.getPath().replaceAll("%20",
// "");
// 添加
addControllerClass(classSet, packagePath, packageName);
} else if (protocol.equals("jar")) {
JarURLConnection jarURLConnection = (JarURLConnection) url.openConnection();
if (jarURLConnection != null) {
JarFile jarFile = jarURLConnection.getJarFile();
if (jarFile != null) {
Enumeration<JarEntry> jarEntries = jarFile.entries();
while (jarEntries.hasMoreElements()) {
JarEntry jarEntry = jarEntries.nextElement();
String jarEntryName = jarEntry.getName();
if (jarEntryName.endsWith(".class")) {
String className = jarEntryName.substring(0, jarEntryName.lastIndexOf("."))
.replaceAll("/", ".");
doAddControllerClass(classSet, className);
}
}
}
}
}
}
}
} catch (IOException e) {
e.printStackTrace();
LOGGER.error("查找包下的类失败{}", e);
}
return classSet;
}
private static void addControllerClass(Set<Class<? extends Controller>> classSet, String packagePath, String packageName) {
File[] files = new File(packagePath).listFiles(new FileFilter() {
public boolean accept(File file) {
return (file.isFile() && file.getName().endsWith(".class") || file.isDirectory());
}
});
for (File file : files) {
String fileName = file.getName();
if (file.isFile()) {
String className = fileName.substring(0, fileName.lastIndexOf("."));
if (StringUtils.isNotEmpty(packageName)) {
className = packageName + "." + className;
LOGGER.error("className: {}", className);
}
// 添加
doAddControllerClass(classSet, className);
} else {
// 子目录
String subPackagePath = fileName;
if (StringUtils.isNotEmpty(packagePath)) {
subPackagePath = packagePath + "/" + subPackagePath;
}
String subPackageName = fileName;
if (StringUtils.isNotEmpty(packageName)) {
subPackageName = packageName + "." + subPackageName;
}
addControllerClass(classSet, subPackagePath, subPackageName);
}
}
}
/**
* 添加文件到SET集合
* @Title: addClass
* @Description: TODO(这里用一句话描述这个方法的作用)
* @param @param classSet
* @param @param packagePath
* @param @param packageName 设定文件
* @return void 返回类型
* @throws */
private static void addClass(Set<Class<?>> classSet, String packagePath, String packageName) {
File[] files = new File(packagePath).listFiles(new FileFilter() {
public boolean accept(File file) {
return (file.isFile() && file.getName().endsWith(".class") || file.isDirectory());
}
});
for (File file : files) {
String fileName = file.getName();
if (file.isFile()) {
String className = fileName.substring(0, fileName.lastIndexOf("."));
if (StringUtils.isNotEmpty(packageName)) {
className = packageName + "." + className;
LOGGER.error("className: {}", className);
}
// 添加
doAddClass(classSet, className);
} else {
// 子目录
String subPackagePath = fileName;
if (StringUtils.isNotEmpty(packagePath)) {
subPackagePath = packagePath + "/" + subPackagePath;
}
String subPackageName = fileName;
if (StringUtils.isNotEmpty(packageName)) {
subPackageName = packageName + "." + subPackageName;
}
addClass(classSet, subPackagePath, subPackageName);
}
}
}
private static void doAddClass(Set<Class<?>> classSet, String className) {
Class<?> cls = loadClass(className, false);
classSet.add(cls);
}
private static void doAddControllerClass(Set<Class<? extends Controller>> classSet, String className) {
Class<? extends Controller> cls = loadControllerClass(className, false);
classSet.add(cls);
}
}在DemoConfig主类里面增加方法
/**
* 增加controller路由定义
* @param me 路由表
* @param controllerPackageName controller所在的包名
*/
private void addControllerAnnoRequestMap(Routes me,String controllerPackageName){
Set<Class<? extends Controller>> claesses=ClassUtil.getControllerClassSet(controllerPackageName);
//Set<Class<? extends Controller>> claesses=ClassUtil.getClassSet("com.js.jshop.boot.controller");
for(Class<?> c:claesses){
System.out.println(c.isInstance(Controller.class));
System.out.println(c.getName());
RequestMap requestMap=c.getAnnotation(RequestMap.class);
WebDir webDir=c.getAnnotation(WebDir.class);
System.out.println(requestMap.name());
System.out.println(webDir.name());
me.add(requestMap.name(),(Class<? extends Controller>) c,webDir.name());
}
}在DemoConfig主类里面的方法configRoute中增加所有扫描的controller类的方法使用
public void configRoute(Routes me){
//对文件夹中的所有的controller进行路径映射,第二个参数是controller的类包
addControllerAnnoRequestMap(me,"com.js.jshop.boot.controller");
}测试结果
经过测试可以用,望大家指教!~