<!--freemarker-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.6</version>
</dependency>
/**
* Freemarker实例Controller
*/
@RequestMapping("/freemarker")
@Controller
public class FreemarkerController {
@Autowired
RestTemplate restTemplate;
@RequestMapping("/test1")
public String test1(Map<String,Object> map){
map.put("name","fly");
Student stu2 = new Student();
Student stu1 = new Student("小明",18,new Date(),1000.22f,null,stu2);
stu2.setName("小红");
stu2.setMoney(222.1f);
stu2.setAge(12);
//list数据
List<Student> stus = new ArrayList<>();
stus.add(stu1);
stus.add(stu2);
map.put("stus",stus);
//map数据
HashMap<String,Student> stuMap = new HashMap<>();
stuMap.put("stu1",stu1);
stuMap.put("stu2",stu2);
map.put("stu1",stu1);
map.put("stuMap",stuMap);
map.put("today",new Date());
return "test1";
}
}
templates/test1.ftl:
<#--
freemarker实例
-->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h4>hello ${name}!</h4>
<table border="1">
<tr>
<td>序号</td>
<td>姓名</td>
<td>年龄</td>
<td>钱包</td>
</tr>
<#--遍历list-->
<#list stus as stu>
<tr>
<td>${stu_index + 1}</td> <#-- _index,循环下标,从0开始-->
<td>${stu.name}</td>
<td>${stu.age}</td>
<td>${stu.money}</td>
</tr>
</#list>
</table>
<#--遍历map-->
stu1: <br>
姓名: ${stuMap['stu1'].name} <br>
年龄: ${stuMap['stu1'].age} <br>
stu1: <br>
姓名: ${stuMap.stu1.name} <br>
年龄: ${stuMap.stu1.age} <br>
遍历map
<table border="1">
<tr>
<td>序号</td>
<td>姓名</td>
<td>年龄</td>
<td>钱包</td>
</tr>
<#list stuMap?keys as k>
<tr>
<td>${k_index + 1}</td>
<#--if 指令-->
<td <#if stuMap[k].name=='小明'>style="background: red;"</#if>>
${stuMap[k].name}
</td>
<td>${stuMap[k].age}</td>
<td>${stuMap[k].money}</td>
</tr>
</#list>
</table>
<#--空值处理-->
<#if stu1??>
<p>${stu1.name}</p>
</#if>
<br>
<#--内建函数-->
<#--集合大小-->
集合大小${stus?size}
年月日${today?date}
时分秒${today?time}
年月日+时分秒${today?datetime}
自定义格式${today?string("yyyy年MM月")}
<#--内建函数c 三位分割-->
${1111112221?c}
<#--json转对象-->
<#assign text="{'bank':'工商银行','account':'101010101010001010'}"/>
<#assign data=text?eval/>
户行${data.bank} 账号${data.account}
</body>
</html>
/**
* freemarker静态化测试
*/
@RunWith(SpringRunner.class)
@SpringBootTest(classes = ShuJuApplication.class)
public class FreemarkerTest {
@Test
public void testGenerateHtml() throws Exception {
Configuration configuration = new Configuration(Configuration.getVersion());
String path = this.getClass().getResource("/").getPath();
configuration.setDirectoryForTemplateLoading(new File(path+"/templates"));
configuration.setDefaultEncoding("utf-8");
Template template = configuration.getTemplate("test1.ftl");
Map<String,Object> map = new HashMap<>();
map.put("name","fly");
String content = FreeMarkerTemplateUtils.processTemplateIntoString(template, map);
System.out.println(content);
InputStream inputStream = IOUtils.toInputStream(content, "utf-8");
FileOutputStream fileOutputStream = new FileOutputStream(new File("C:\uploads\"+"test1.html"));
IOUtils.copy(inputStream,fileOutputStream);
}
@Test
public void testGenerateHtml2() throws Exception {
Configuration configuration = new Configuration(Configuration.getVersion());
String templateString = "<!DOCTYPE html>
" +
"<html lang="en">
" +
"<head>
" +
" <meta charset="UTF-8">
" +
" <title>Title</title>
" +
"</head>
" +
"<body>
" +
"<h4>hello ${name}!</h4>
" +
"</body>
" +
"</html>";
StringTemplateLoader stringTemplateLoader = new StringTemplateLoader();
stringTemplateLoader.putTemplate("template",templateString);
configuration.setTemplateLoader(stringTemplateLoader);
Template template = configuration.getTemplate("template","utf-8");
Map<String,Object> map = new HashMap<>();
map.put("name","fly");
String content = FreeMarkerTemplateUtils.processTemplateIntoString(template, map);
System.out.println(content);
InputStream inputStream = IOUtils.toInputStream(content, "utf-8");
FileOutputStream fileOutputStream = new FileOutputStream(new File("C:\uploads\"+"test1.html"));
IOUtils.copy(inputStream,fileOutputStream);
}
}