JAVA中如何使用freemaker模版进行输出

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首先你要有一个定义好的ftl文件，也就是最终输出的样式定义

<html><head><title></title></head><style type="text/css">table {width: 800px;height: 400px;border: 2px solid black;}table thead tr td{text-align: center;border-right: 1px solid #C1DAD7;border-bottom: 1px solid #C1DAD7;background: #fff;font-size: 20px;font-weight: bold;color: #4f6b72;}.td1 {border-right: 1px solid #C1DAD7;border-bottom: 1px solid #C1DAD7;background: #fff;font-size: 14px;padding: 6px 6px 6px 12px;color: #4f6b72;width: 100px;}.td2 {border-right: 1px solid #C1DAD7;border-bottom: 1px solid #C1DAD7;background: #fff;font-size: 14px;padding: 6px 6px 6px 12px;color: #4f6b72;width: 500px;}</style><body><center><table><thead><tr><td colspan='2'>AlertMail</td></tr></thead><tr><td class="td1">Mon_type</td><td class="td2">${AM.monType}</td></tr><tr><td class="td1">Alert_code</td><td class="td2">${AM.alertCode}</td></tr><tr><td class="td1">Alert_text</td><td class="td2">${AM.alertText}</td></tr><tr><td class="td1">Mon_date</td><td class="td2">${AM.monDate}</td></tr></table></center></body><html>

然后写一个加载ftl文件的JAVA类

import java.io.StringWriter;import java.util.Map;import com.service.impl.MonServiceImpl;import freemarker.template.Configuration;import freemarker.template.Template;/* * use freemarker to send email */public class FreemarkUtil {private static Configuration cfg;private static void initialConfig() {cfg = new Configuration();cfg.setClassForTemplateLoading(MonServiceImpl.class,"/package的名字,用'/'隔开/");}/* * templateName means the ftl file name * param means the Object used in ftl */public static String getMail(String templateName,Map<String, Object> param) {String result = null;try {if (cfg == null) {initialConfig();}Template temp = cfg.getTemplate(templateName);StringWriter writer = new StringWriter();temp.process(param, writer);result = writer.toString();writer.flush();} catch (Exception e) {e.printStackTrace();}return result;}}

然后在需要网ftl中输出内容的地方

paramMap.put("AM", a);  AM即FTL中的对象名，要一致

String mailContent = FreemarkUtil.getMail("FTL文件的名字.ftl",paramMap);mail.setContent(mailContent);

通过以上语句就可以是实现了。