多平台统一管理软件接口,如何实现多平台统一管理软件接口
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2023-07-21
基于Java的Spring框架来操作FreeMarker模板的示例
1、通过String来创建模版对象,并执行插值处理
import freemarker.template.Template;
import java.io.OutputStreamWriter;
import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;
/**
* Freemarker最简单的例子
*
* @author leizhimin 11-11-17 上午10:32
*/
public class Test2 {
public static void main(String[] args) throws Exception{
//创建一个模版对象
Template t = new Template(null, new StringReader("用户名:${user};URL: ${url};姓名: ${name}"), null);
//创建插值的Map
Map map = new HashMap();
map.put("user", "lavasoft");
map.put("url", "http://baidu.com/");
map.put("name", "百度");
//执行插值,并输出到指定的输出流中
t.process(map, new OutputStreamWriter(System.out));
}
}
执行后,控制台输出结果:
用户名:lavasoft;
URL: http://baidu.com/;
姓名: 百度
Process finished with exit code 0
2、通过文件来创建模版对象,并执行插值操作
import freemarker.template.Configuration;
import freemarker.template.Template;
import java.io.File;
import java.io.OutpuHlRYyAtStreamWriter;
import java.util.HashMap;
import java.util.Map;
/**
* Freemarker最简单的例子
*
* @author leizhimin 11-11-14 下午2:44
*/
public class Test {
private Configuration cfg; //模版配置对象
public void init() throws Exception {
//初始化FreeMarker配置
//创建一个Configuration实例
cfg = new Configuration();
//设置FreeMarker的模版文件夹位置
cfg.setDirectoryForTemplateLoading(new File("G:\\testprojects\\freemarkertest\\src"));
}
public void process() throws Exception {
//构造填充数据的Map
Map map = new HashMap();
map.put("user", "lavasoft");
map.put("url", "http://baidu.com/");
map.put("name", "百度");
//创建模版对象
Template t = cfg.getTemplate("test.ftl");
//在模版上执行插值操作,并输出到制定的输出流中
t.process(map, new OutputStreamWriter(System.out));
}
public static void main(String[] args) throws Exception {
Test hf = new Test();
hf.init();
hf.process();
}
}
创建模版文件test.ftl
Our latest product:
尊敬的用户你好:
用户名:${user};
URL: ${url};
姓名: ${name}
执行后,控制台输出结果如下:
Our latest producthttp://:
百度!
尊敬的用户你好:
用户名:lavasoft;
URL: http://baidu.com/;
姓名: 百度
Process finished with exit code 0
3.基于注解的Spring+freemarker实例
web项目图
web.xml文件
springmvc-servlet.xml文件
xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:p="http://springframework.org/schema/p" xmlns:mvc="http://springframework.org/schema/mvc" xmlns:context="http://springframework.org/schema/context" xsi:schemaLocation="http://springframework.org/schema/beans http://springframework.org/schema/beans/spring-beans.xsd http://springframework.org/schema/mvc http://springframework.org/schema/mvc/spring-mvc-3.0.xsd http://springframework.org/schema/aop http://springframework.org/schema/aop/spring-aop-3.0.xsd http://springframework.org/schema/context http://springframework.org/schema/context/spring-context.xsd">
xmlns:xsi="http://w3.org/2001/XMLSchema-instance" xmlns:p="http://springframework.org/schema/p"
xmlns:mvc="http://springframework.org/schema/mvc" xmlns:context="http://springframework.org/schema/context"
xsi:schemaLocation="http://springframework.org/schema/beans
http://springframework.org/schema/beans/spring-beans.xsd
http://springframework.org/schema/mvc
http://springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://springframework.org/schema/aop
http://springframework.org/schema/aop/spring-aop-3.0.xsd
http://springframework.org/schema/context
http://springframework.org/schema/context/spring-context.xsd">
FreeMarkerController类
package com.spring.freemarker;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.spring.vo.User;
@Controller
@RequestMapping("/home")
public class FreeMarkerController {
@RequestMapping("/index")
public ModelAndView Add(HttpServletRequest request, HttpServletResponse response) {
User user = new User();
user.setUsername("zhangsan");
user.setPassword("1234");
List
users.add(user);
return new ModelAndView("index", "users", users);
}
}
User类
package com.spring.vo;
public class User {
private String username;
private String password;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}
index.ftl文件
<#list users as user>
username : ${user.username}
password : ${user.password}
#list>
部署到tomcat,运行:http://localhost:8080/springmvc/home/index
显示结果:
username : zhangsan
password : 1234
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