FreeMarker的使用

引入的jar包：

import freemarker.core.Environment;
import freemarker.core.TemplateElement;
import freemarker.ext.beans.StringModel;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateSequenceModel;

简单的代码的例子：

@Resource
    private FreeMarkerConfigurer freemarkerConfigurer;
    
    @Resource
    private ServletContext servletContext;

    public String getPraseHtmlFormTemplate(String templateString,Map<String, Object> paramMap, boolean readOnly,
            IInitCallback initCallback,boolean preview) {
        return praseHtmlFormTemplate(templateString, paramMap, readOnly, initCallback,preview);
    }
    
    protected String praseHtmlFormTemplate(String templateString, 
            Map<String, Object> paramMap, boolean readOnly,IInitCallback initCallback,boolean preview) {
        Configuration cfg =freemarkerConfigurer.getConfiguration();
        cfg.setCustomAttribute("initCallback", initCallback);
        cfg.setCustomAttribute("readOnly", readOnly);
        cfg.setCustomAttribute("preview", preview);
        cfg.setTemplateLoader(new StringTemplateLoader(templateString)); 
        Template template;
        try {
            template = cfg.getTemplate("");
            StringWriter writer = new StringWriter();
            Environment env = template.createProcessingEnvironment(paramMap, writer); 
            env.setCustomAttribute("paramMap", paramMap);
            env.process(); 
            return writer.toString();
        } catch (Exception e) {
            logger.error("解析模板文件错误:" + e.getMessage());
            e.printStackTrace();
        }
        return "";
    }