FreeMarker_模板引擎_代码自动生成器_源码下载

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原文地址：http://www.cnblogs.com/hongten/archive/2013/04/05/hongten_freemarker.html

项目结构：

运行代码：

1 public static void main(String[] args) throws Exception {2     helloWorld(FTLS_PATH, HONGTEN_HELLO_WORLD_FTL);3  }

运行效果：

运行代码：

1 public static void main(String[] args) throws Exception {2         myJavaFile(FTLS_PATH,BEAN_URL,HONGTEN_MY_JAVA_FILE_FTL);3     }

运行效果：

生成的User.java文件：

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代码部分：你可以了解一下velocity(也是一个模板引擎)：利用Velocity自动生成自定义代码_java版_源码下载

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/freemarker/src/com/b510/freemarker/Bean.java

package com.b510.freemarker;/** * bean类 *  * @author hongten(hongtenzone@foxmail.com)<br> * @date 2013-4-5 */public class Bean {    /** bean 名称 */    private String name;    /** bean 首字母小写名称 */    private String lowerName;    /** bean 路径 */    private String beanUrl;    /** dao 路径 */    private String beanDaoUrl;    /** dao 实现路径 */    private String beanDaoImplUrl;    /** service 路径 */    private String beanServiceUrl;    /** service 实现路径 */    private String beanServiceImplUrl;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getLowerName() {        return lowerName;    }    public void setLowerName(String lowerName) {        this.lowerName = lowerName;    }    public String getBeanUrl() {        return beanUrl;    }    public void setBeanUrl(String beanUrl) {        this.beanUrl = beanUrl;    }    public String getBeanDaoUrl() {        return beanDaoUrl;    }    public void setBeanDaoUrl(String beanDaoUrl) {        this.beanDaoUrl = beanDaoUrl;    }    public String getBeanDaoImplUrl() {        return beanDaoImplUrl;    }    public void setBeanDaoImplUrl(String beanDaoImplUrl) {        this.beanDaoImplUrl = beanDaoImplUrl;    }    public String getBeanServiceUrl() {        return beanServiceUrl;    }    public void setBeanServiceUrl(String beanServiceUrl) {        this.beanServiceUrl = beanServiceUrl;    }    public String getBeanServiceImplUrl() {        return beanServiceImplUrl;    }    public void setBeanServiceImplUrl(String beanServiceImplUrl) {        this.beanServiceImplUrl = beanServiceImplUrl;    }}

/freemarker/src/com/b510/freemarker/Annotation.java

package com.b510.freemarker;/** * 注释 *  * @author hongten(hongtenzone@foxmail.com)<br> * @date 2013-4-5 */public class Annotation {    /**     * 作者名称     */    private String authorName;    /**     * 作者邮箱     */    private String authorMail;    /**     * 日期     */    private String date;    /**     * 版本     */    private String version;    public String getAuthorName() {        return authorName;    }    public void setAuthorName(String authorName) {        this.authorName = authorName;    }    public String getAuthorMail() {        return authorMail;    }    public void setAuthorMail(String authorMail) {        this.authorMail = authorMail;    }    public String getDate() {        return date;    }    public void setDate(String date) {        this.date = date;    }    public String getVersion() {        return version;    }    public void setVersion(String version) {        this.version = version;    }}

/freemarker/src/com/b510/freemarker/MyFreeMarker.java

/** *  */package com.b510.freemarker;import java.io.File;import java.io.FileWriter;import java.io.OutputStreamWriter;import java.io.Writer;import java.text.SimpleDateFormat;import java.util.Date;import java.util.HashMap;import java.util.Map;import freemarker.template.Configuration;import freemarker.template.Template;/** * freemarker测试 *  * @author hongten(hongtenzone@foxmail.com)<br> * @date 2013-4-5 */public class MyFreeMarker {    private static Configuration configuration;    private static Template template;    private static Writer writer;    /**     * 模板文件的存放路径，这里是存放在项目根目录下的ftls文件夹中     */    public static final String FTLS_PATH = "ftls";    public static final String MESSAGE = "message";    public static final String HELLO_WORLD = "Hello World!";    public static final String HONGTEN_HELLO_WORLD_FTL = "hongten-helloworld.ftl";    public static final String HONGTEN_MY_JAVA_FILE_FTL = "hongten-myJavaFile.ftl";    // bean    public static final String BEAN = "bean";    public static final String BEAN_URL = "com.b510.bean";    // annotation    public static final String ANNOTATION = "annotation";    public static final String ANNOTATION_AUTHOR_NAME = "hongten";    public static final String ANNOTATION_AUTHOR_MAIL = "hongtenzone@foxmail.com";    public static final String ANNOTATION_VERSION = "1.0";    // date formate    public static final String DATE_FROMATE = "yyyy-MM-dd";    public static void main(String[] args) throws Exception {        // helloWorld(FTLS_PATH, HONGTEN_HELLO_WORLD_FTL);        myJavaFile(FTLS_PATH, BEAN_URL, HONGTEN_MY_JAVA_FILE_FTL);    }    /**     * 利用模板在控制台打印helloworld信息     *      * @param path     *            模板存放的路径     * @param ftlFile     *            模板文件     * @throws Exception     */    public static void helloWorld(String path, String ftlFile) throws Exception {        // 创建Freemarker配置实例        configuration = new Configuration();        configuration.setDirectoryForTemplateLoading(new File(path));        // 创建数据模型        Map<String, String> root = new HashMap<String, String>();        root.put(MESSAGE, HELLO_WORLD);        // 加载模板文件        template = configuration.getTemplate(ftlFile);        // 显示生成的数据，这里打印在控制台        writer = new OutputStreamWriter(System.out);        template.process(root, writer);        writer.flush();        writer.close();    }    /**     * 利用freemarker生成自定义的javaBean     *      * @param path     *            模板路径     * @param packageUrl     *            javaBean的url，即package名称     * @param ftlFile     *            使用的模板文件     * @throws Exception     */    public static void myJavaFile(String path, String packageUrl, String ftlFile) throws Exception {        // 创建Freemarker配置实例        configuration = new Configuration();        configuration.setDirectoryForTemplateLoading(new File(path));        // 创建数据模型        Map<String, Object> root = new HashMap<String, Object>();        Bean bean = new Bean();        bean.setName("User");        bean.setLowerName("user");        bean.setBeanUrl(packageUrl);        root.put(BEAN, bean);        Annotation annotation = new Annotation();        annotation.setAuthorMail(ANNOTATION_AUTHOR_MAIL);        annotation.setAuthorName(ANNOTATION_AUTHOR_NAME);        annotation.setVersion(ANNOTATION_VERSION);        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_FROMATE);        annotation.setDate(simpleDateFormat.format(new Date()));        root.put(ANNOTATION, annotation);        // 加载模板文件        template = configuration.getTemplate(ftlFile);        String beanPath = System.getProperty("user.dir") + "/src/" + packageUrl.replace(".", "/") + "/";        File filePath = new File(beanPath);        if (!filePath.exists()) {            filePath.mkdirs();        }        String filePathOfBean = beanPath + "/User.java";        File file = new File(filePathOfBean);        if (!file.exists()) {            file.createNewFile();        }        // 显示生成的数据        writer = new FileWriter(file);        template.process(root, writer);        writer.flush();        writer.close();    }}

/freemarker/ftls/hongten-helloworld.ftl

${message}

/freemarker/ftls/hongten-myJavaFile.ftl

package ${bean.beanUrl};import java.util.Date;/** * @author ${annotation.authorName}(${annotation.authorMail})<br> * @date ${annotation.date} *  * @version ${annotation.version} */public class ${bean.name} {    /**     * id号     */    private Integer id;    /**     * 姓名     */    private String name;    /**     * 性别     */    private String sex;    /**     * 生日     */    private Date birthday;    public Integer getId() {        return id;    }    public void setId(Integer id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getSex() {        return sex;    }    public void setSex(String sex) {        this.sex = sex;    }    public Date getBirthday() {        return birthday;    }    public void setBirthday(Date birthday) {        this.birthday = birthday;    }}

源码下载：http://files.cnblogs.com/hongten/freemarker_file.zip

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