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fix code
This commit is contained in:
Looly
@@ -0,0 +1,273 @@
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package cn.hutool.extra.script;
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import cn.hutool.core.exceptions.UtilException;
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import cn.hutool.core.map.WeakConcurrentMap;
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import cn.hutool.core.text.StrUtil;
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import javax.script.Bindings;
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import javax.script.Compilable;
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import javax.script.CompiledScript;
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import javax.script.Invocable;
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import javax.script.ScriptContext;
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import javax.script.ScriptEngine;
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import javax.script.ScriptEngineManager;
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import javax.script.ScriptException;
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/**
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* 脚本工具类
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*
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* @author Looly
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*/
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public class ScriptUtil {
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private static final ScriptEngineManager MANAGER = new ScriptEngineManager();
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private static final WeakConcurrentMap<String, ScriptEngine> CACHE = new WeakConcurrentMap<>();
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/**
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* 获得单例的{@link ScriptEngine} 实例
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*
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* @param nameOrExtOrMime 脚本名称
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* @return {@link ScriptEngine} 实例
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*/
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public static ScriptEngine getScript(final String nameOrExtOrMime) {
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return CACHE.computeIfAbsent(nameOrExtOrMime, (key) -> createScript(nameOrExtOrMime));
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}
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/**
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* 创建 {@link ScriptEngine} 实例
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*
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* @param nameOrExtOrMime 脚本名称
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* @return {@link ScriptEngine} 实例
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* @since 5.2.6
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*/
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public static ScriptEngine createScript(final String nameOrExtOrMime) {
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ScriptEngine engine = MANAGER.getEngineByName(nameOrExtOrMime);
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if (null == engine) {
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engine = MANAGER.getEngineByExtension(nameOrExtOrMime);
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}
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if (null == engine) {
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engine = MANAGER.getEngineByMimeType(nameOrExtOrMime);
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}
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if (null == engine) {
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throw new NullPointerException(StrUtil.format("Script for [{}] not support !", nameOrExtOrMime));
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}
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return engine;
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}
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/**
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* 获得单例的JavaScript引擎
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*
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* @return Javascript引擎
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* @since 5.2.5
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*/
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public static ScriptEngine getJsEngine() {
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return getScript("js");
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}
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/**
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* 创建新的JavaScript引擎
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*
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* @return Javascript引擎
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* @since 5.2.6
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*/
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public static ScriptEngine createJsEngine() {
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return createScript("js");
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}
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/**
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* 获得单例的Python引擎<br>
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* 需要引入org.python:jython
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*
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* @return Python引擎
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* @since 5.2.5
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*/
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public static ScriptEngine getPythonEngine() {
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System.setProperty("python.import.site", "false");
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return getScript("python");
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}
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/**
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* 创建Python引擎<br>
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* 需要引入org.python:jython
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*
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* @return Python引擎
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* @since 5.2.6
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*/
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public static ScriptEngine createPythonEngine() {
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System.setProperty("python.import.site", "false");
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return createScript("python");
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}
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/**
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* 获得单例的Lua引擎<br>
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* 需要引入org.luaj:luaj-jse
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*
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* @return Lua引擎
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* @since 5.2.5
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*/
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public static ScriptEngine getLuaEngine() {
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return getScript("lua");
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}
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/**
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* 创建Lua引擎<br>
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* 需要引入org.luaj:luaj-jse
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*
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* @return Lua引擎
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* @since 5.2.6
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*/
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public static ScriptEngine createLuaEngine() {
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return createScript("lua");
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}
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/**
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* 获得单例的Groovy引擎<br>
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* 需要引入org.codehaus.groovy:groovy-all
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*
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* @return Groovy引擎
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* @since 5.2.5
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*/
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public static ScriptEngine getGroovyEngine() {
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return getScript("groovy");
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}
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/**
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* 创建Groovy引擎<br>
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* 需要引入org.codehaus.groovy:groovy-all
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*
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* @return Groovy引擎
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* @since 5.2.6
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*/
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public static ScriptEngine createGroovyEngine() {
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return createScript("groovy");
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}
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/**
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* 执行Javascript脚本，返回Invocable，此方法分为两种情况：
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*
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* <ol>
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* <li>执行的脚本返回值是可执行的脚本方法</li>
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* <li>脚本为函数库，则ScriptEngine本身为可执行方法</li>
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* </ol>
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*
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* @param script 脚本内容
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* @return 执行结果
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* @throws UtilException 脚本异常
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* @since 5.3.6
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*/
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public static Invocable evalInvocable(final String script) throws UtilException {
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final ScriptEngine jsEngine = getJsEngine();
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final Object eval;
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try {
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eval = jsEngine.eval(script);
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} catch (final ScriptException e) {
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throw new UtilException(e);
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}
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if(eval instanceof Invocable){
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return (Invocable)eval;
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} else if(jsEngine instanceof Invocable){
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return (Invocable)jsEngine;
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}
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throw new UtilException("Script is not invocable !");
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}
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/**
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* 执行有返回值的Javascript脚本
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*
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* @param script 脚本内容
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* @return 执行结果
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* @throws UtilException 脚本异常
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* @since 3.2.0
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*/
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public static Object eval(final String script) throws UtilException {
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try {
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return getJsEngine().eval(script);
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} catch (final ScriptException e) {
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throw new UtilException(e);
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}
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}
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/**
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* 执行有返回值的脚本
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*
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* @param script 脚本内容
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* @param context 脚本上下文
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* @return 执行结果
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* @throws UtilException 脚本异常
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* @since 3.2.0
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*/
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public static Object eval(final String script, final ScriptContext context) throws UtilException {
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try {
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return getJsEngine().eval(script, context);
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} catch (final ScriptException e) {
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throw new UtilException(e);
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}
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}
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/**
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* 执行有返回值的脚本
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*
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* @param script 脚本内容
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* @param bindings 绑定的参数
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* @return 执行结果
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* @throws UtilException 脚本异常
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* @since 3.2.0
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*/
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public static Object eval(final String script, final Bindings bindings) throws UtilException {
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try {
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return getJsEngine().eval(script, bindings);
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} catch (final ScriptException e) {
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throw new UtilException(e);
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}
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}
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/**
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* 执行JS脚本中的指定方法
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*
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* @param script js脚本
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* @param func 方法名
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* @param args 方法参数
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* @return 结果
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* @since 5.3.6
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*/
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public static Object invoke(final String script, final String func, final Object... args) {
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final Invocable eval = evalInvocable(script);
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try {
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return eval.invokeFunction(func, args);
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} catch (final ScriptException | NoSuchMethodException e) {
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throw new UtilException(e);
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}
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}
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/**
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* 编译Javascript脚本
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*
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* @param script 脚本内容
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* @return {@link CompiledScript}
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* @throws UtilException 脚本异常
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* @since 3.2.0
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*/
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public static CompiledScript compile(final String script) throws UtilException {
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try {
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return compile(getJsEngine(), script);
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} catch (final ScriptException e) {
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throw new UtilException(e);
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}
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}
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/**
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* 编译Javascript脚本
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*
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* @param engine 引擎
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* @param script 脚本内容
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* @return {@link CompiledScript}
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* @throws ScriptException 脚本异常
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*/
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public static CompiledScript compile(final ScriptEngine engine, final String script) throws ScriptException {
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if (engine instanceof Compilable) {
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final Compilable compEngine = (Compilable) engine;
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return compEngine.compile(script);
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}
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return null;
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}
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}
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@@ -0,0 +1,6 @@
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/**
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* 使用Java对脚本引擎的工具封装
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*
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* @author looly
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*/
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package cn.hutool.extra.script;
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121
hutool-extra/src/main/java/cn/hutool/extra/xml/JAXBUtil.java
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121
hutool-extra/src/main/java/cn/hutool/extra/xml/JAXBUtil.java
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@@ -0,0 +1,121 @@
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package cn.hutool.extra.xml;
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import cn.hutool.core.exceptions.UtilException;
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import cn.hutool.core.io.FileUtil;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.text.StrUtil;
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import cn.hutool.core.util.CharsetUtil;
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import cn.hutool.core.util.XmlUtil;
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import javax.xml.bind.JAXBContext;
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import javax.xml.bind.Marshaller;
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import javax.xml.bind.Unmarshaller;
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import javax.xml.bind.annotation.XmlElement;
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import javax.xml.bind.annotation.XmlElementWrapper;
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import javax.xml.bind.annotation.XmlRootElement;
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import javax.xml.bind.annotation.XmlTransient;
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import java.io.File;
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import java.io.Reader;
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import java.io.StringWriter;
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import java.nio.charset.Charset;
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/**
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* JAXB（Java Architecture for XML Binding），根据XML Schema产生Java对象，即实现xml和Bean互转。
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* <p>
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* 相关介绍：
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* <ul>
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* <li><a href="https://www.cnblogs.com/yanghaolie/p/11110991.html">https://www.cnblogs.com/yanghaolie/p/11110991.html</a></li>
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* <li><a href="https://my.oschina.net/u/4266515/blog/3330113">https://my.oschina.net/u/4266515/blog/3330113</a></li>
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* </ul>
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*
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* @author dazer
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* @see XmlUtil
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* @since 5.7.3
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*/
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public class JAXBUtil {
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/**
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* JavaBean转换成xml
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* <p>
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* bean上面用的常用注解
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*
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* @param bean Bean对象
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* @return 输出的XML字符串
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* @see XmlRootElement {@code @XmlRootElement(name = "school")}
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* @see XmlElement {@code @XmlElement(name = "school_name", required = true)}
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* @see XmlElementWrapper {@code @XmlElementWrapper(name="schools")}
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* @see XmlTransient JAXB "有两个名为 "**" 的属性,类的两个属性具有相同名称 "**""解决方案
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*/
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public static String beanToXml(final Object bean) {
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return beanToXml(bean, CharsetUtil.UTF_8, true);
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}
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/**
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* JavaBean转换成xml
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*
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* @param bean Bean对象
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* @param charset 编码 eg: utf-8
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* @param format 是否格式化输出eg: true
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* @return 输出的XML字符串
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*/
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public static String beanToXml(final Object bean, final Charset charset, final boolean format) {
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final StringWriter writer;
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try {
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final JAXBContext context = JAXBContext.newInstance(bean.getClass());
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final Marshaller marshaller = context.createMarshaller();
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marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, format);
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marshaller.setProperty(Marshaller.JAXB_ENCODING, charset.name());
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writer = new StringWriter();
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marshaller.marshal(bean, writer);
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} catch (final Exception e) {
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throw new UtilException("convertToXml 错误：" + e.getMessage(), e);
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}
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return writer.toString();
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}
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/**
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* xml转换成JavaBean
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*
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* @param <T> Bean类型
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* @param xml XML字符串
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* @param c Bean类型
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* @return bean
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*/
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public static <T> T xmlToBean(final String xml, final Class<T> c) {
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return xmlToBean(StrUtil.getReader(xml), c);
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}
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/**
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* XML文件转Bean
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*
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* @param file 文件
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* @param charset 编码
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* @param c Bean类
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* @param <T> Bean类型
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* @return Bean
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*/
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public static <T> T xmlToBean(final File file, final Charset charset, final Class<T> c) {
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return xmlToBean(FileUtil.getReader(file, charset), c);
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}
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/**
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* 从{@link Reader}中读取XML字符串，并转换为Bean
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*
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* @param reader {@link Reader}
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* @param c Bean类
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* @param <T> Bean类型
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* @return Bean
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*/
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@SuppressWarnings("unchecked")
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public static <T> T xmlToBean(final Reader reader, final Class<T> c) {
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try {
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final JAXBContext context = JAXBContext.newInstance(c);
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final Unmarshaller unmarshaller = context.createUnmarshaller();
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return (T) unmarshaller.unmarshal(reader);
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} catch (final Exception e) {
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throw new RuntimeException("convertToJava2 错误：" + e.getMessage(), e);
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} finally {
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IoUtil.close(reader);
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}
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}
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}
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@@ -0,0 +1,8 @@
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/**
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* XML和JAXB（Java Architecture for XML Binding）相关封装<br>
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* 由于JDK11+移除了"javax.xml.bind"相关类型，因此封装于extra模块
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*
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* @author looly
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*
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*/
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package cn.hutool.extra.xml;
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