Examples of net.hasor.core.Environment.evalString()

net.hasor.core.Environment.evalString()
计算字符串，将字符串中定义的环境变量替换为环境变量值。环境变量名不区分大小写。
注意：只有被百分号包裹起来的部分才被解析成为环境变量名，如果无法解析某个环境变量平台会抛出一条警告，并且将环境变量名连同百分号作为环境变量值一起返回。
例如：环境中定义了变量Hasor_Home=C:/hasor、Java_Home=c:/app/java，下面的解析结果为
%hasor_home%/tempDir/uploadfile.tmp  -->  C:/hasor/tempDir/uploadfile.tmp

%JAVA_HOME%/bin/javac.exe  -->  c:/app/java/bin/javac.exe

%work_home%/data/range.png  -->  %work_home%/data/range.png；并伴随一条警告

        //JAVA_HOME
        System.out.println(env.getEnvVar("JAVA_HOME"));
        //HASOR_WORK_HOME，该环境变量由 hasor 的配置文件提供，仅在Hasor框架内有效
        System.out.println(env.getEnvVar("HASOR_WORK_HOME"));
        //javac.exe
        System.out.println(env.evalString("%JAVA_HOME%/bin/javac.exe"));
    }
}

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        //
        //设置属性
        System.setProperty("MyVar", "hello");
        env.refreshVariables();/*刷新变量列表*/
        System.out.println(env.getEnvVar("MyVar"));
        System.out.println(env.evalString("i say %MyVar%."));
    }
}

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    public void loadModule(WebApiBinder apiBinder) {
        //1.准备参数
        Environment env = apiBinder.getEnvironment();
        //3.缓存路径
        String cacheSubPath = "%HASOR_PLUGIN_PATH%/net.hasor.web.resource/";
        File cacheDir = new File(env.evalString(cacheSubPath));
        if (!chekcCacheDir(cacheDir)) {
            int i = 0;
            while (true) {
                cacheDir = new File(env.evalString(cacheSubPath + "_" + String.valueOf(i)));;
                if (chekcCacheDir(cacheDir))

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        String cacheSubPath = "%HASOR_PLUGIN_PATH%/net.hasor.web.resource/";
        File cacheDir = new File(env.evalString(cacheSubPath));
        if (!chekcCacheDir(cacheDir)) {
            int i = 0;
            while (true) {
                cacheDir = new File(env.evalString(cacheSubPath + "_" + String.valueOf(i)));;
                if (chekcCacheDir(cacheDir))
                    break;
            }
        }
        ResourceHttpServlet.initCacheDir(cacheDir);

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