Freemarker

1. 依賴

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.example</groupId>
    <artifactId>demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-cache</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

2. freemarker模板

spring.freemarker.template-loader-path=classpath:/templates
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.enabled=true
spring.freemarker.suffix=.ftl

spring.thymeleaf.enabled=false
spring.groovy.template.enabled=false

server.port=9991

3. 控制器

package com.example.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@SpringBootApplication
@Controller
public class DemoApplication {

    @RequestMapping("/hello")
    public String hello(Map<String,Object> map){
        map.put("name", "pzdn2009");
        map.put("gender",1); //gender:性别，1：男；0：女；

        List<Map<String,Object>> friends =new ArrayList<Map<String,Object>>();

        Map<String,Object> friend = new HashMap<String,Object>();
        friend.put("name", "张三");
        friend.put("age", 20);
        friends.add(friend);

        friend = new HashMap<String,Object>();
        friend.put("name", "李四");
        friend.put("age", 22);
        friends.add(friend);

        map.put("friends", friends);

        return "hello";
    }

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }
}

4. ftl

resources/templates/下：

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Hello World!</title>
</head>
<body>
<p>
    welcome ${name} to freemarker!
</p>


<p>性别：
<#if gender==0>
    女
<#elseif gender==1>
    男
<#else>
    保密
</#if>
</p>


<h4>我的好友：</h4>
<#list friends as item>
姓名：${item.name} , 年龄${item.age}
<br>
</#list>

</body>
</html>

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