字符串作为freemarker模板

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    package com.test.demo;      import java.io.IOException;      import java.io.StringWriter;      import java.util.HashMap;      import java.util.Map;      import freemarker.cache.StringTemplateLoader;      import freemarker.template.Configuration;      import freemarker.template.Template;      import freemarker.template.TemplateException;      public class TestFreemarker {          /**          * @param args          */          public static void main(String[] args) {              Configuration cfg = new Configuration();              StringTemplateLoader stringLoader = new StringTemplateLoader();              String templateContent="欢迎：${name}";              stringLoader.putTemplate("myTemplate",templateContent);              cfg.setTemplateLoader(stringLoader);              try {                  Template template = cfg.getTemplate("myTemplate","utf-8");                  Map root = new HashMap();                    root.put("name", "javaboy2012");                  StringWriter writer = new StringWriter();                    try {                      template.process(root, writer);                      System.out.println(writer.toString());                    } catch (TemplateException e) {                      // TODO Auto-generated catch block                      e.printStackTrace();                  }                } catch (IOException e) {                  // TODO Auto-generated catch block                  e.printStackTrace();              }          }      }

    /**     * getControlOptions: 渲染字符串dataOptions<br/>     * @param options     * @param m     * @return      * String     * @exception      * @since  1.0.0     */    private static String getControlOptions(String options, Map<String, Object> m) {        if(StringUtils.isNoneBlank(options)){            Configuration config = new Configuration(Configuration.VERSION_2_3_23);            StringTemplateLoader stringTemplate = new StringTemplateLoader();            String templateName = "formOptions";            stringTemplate.putTemplate(templateName,options);            config.setTemplateLoader(stringTemplate);             Writer out = new StringWriter(256);            try {                Template template = config.getTemplate("formOptions","utf-8");                template.process(m, out);            } catch (TemplateException | IOException e) {                e.printStackTrace();            }            return out.toString();        }        return options;    }

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