详解MyEclipse中搭建spring-boot+mybatis+freemarker框架
1.在myeclipse里创建一个maven项目。file>new>maven project:
勾选图中红色部分,然后点击next。
2.填写下图中红色部分然后点击finish。
3.此时一个maven项目已经生成,目录结构如下:
4.打开pom.xml在里面编辑如下内容:
<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.lm.spring-boot</groupid> <artifactid>spring-boot</artifactid> <version>0.0.1-snapshot</version> <properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> </properties> <parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>1.3.0.release</version> </parent> <dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> </dependency> <!--视图采用freemarker渲染 --> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-freemarker</artifactid> </dependency> <!-- jdbc --> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-jdbc</artifactid> </dependency> <!-- mybatis --> <dependency> <groupid>org.mybatis</groupid> <artifactid>mybatis-spring</artifactid> <version>1.2.2</version> </dependency> <dependency> <groupid>org.mybatis</groupid> <artifactid>mybatis</artifactid> <version>3.2.8</version> </dependency> <!-- mysql --> <dependency> <groupid>mysql</groupid> <artifactid>mysql-connector-java</artifactid> </dependency> </dependencies> <build> <plugins> <plugin> <artifactid>maven-compiler-plugin</artifactid> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> <plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> <dependencies> <dependency> <groupid>org.springframework</groupid> <artifactid>springloaded</artifactid> <version>1.2.5.release</version> </dependency> </dependencies> </plugin> </plugins> <!-- 指定最终生成jar包的文件名--> <finalname>spring-boot</finalname> </build> </project>
5.创建程序入口application.java.
package com.lm.application; import org.apache.ibatis.session.sqlsessionfactory; import org.apache.tomcat.jdbc.pool.datasource; import org.mybatis.spring.sqlsessionfactorybean; import org.mybatis.spring.annotation.mapperscan; import org.springframework.boot.springapplication; import org.springframework.boot.autoconfigure.enableautoconfiguration; import org.springframework.boot.autoconfigure.springbootapplication; import org.springframework.boot.context.properties.configurationproperties; import org.springframework.context.annotation.bean; import org.springframework.context.annotation.componentscan; import org.springframework.core.io.support.pathmatchingresourcepatternresolver; import org.springframework.jdbc.datasource.datasourcetransactionmanager; import org.springframework.transaction.platformtransactionmanager; @enableautoconfiguration @springbootapplication @componentscan(basepackages={"com.lm"})//指定spring管理的bean所在的包 @mapperscan("com.lm.dao")//指定mybatis的mapper接口所在的包 public class application{ public static void main(string[] args) { springapplication.run(application.class, args); } //创建数据源 @bean @configurationproperties(prefix = "spring.datasource")//指定数据源的前缀 ,在application.properties文件中指定 public datasource datasource() { return new datasource(); } //创建sqlsessionfactory @bean public sqlsessionfactory sqlsessionfactorybean() throws exception { sqlsessionfactorybean sqlsessionfactorybean = new sqlsessionfactorybean(); sqlsessionfactorybean.setdatasource(datasource()); pathmatchingresourcepatternresolver resolver = new pathmatchingresourcepatternresolver(); sqlsessionfactorybean.setmapperlocations(resolver.getresources("classpath:/mybatis/*.xml")); return sqlsessionfactorybean.getobject(); } //创建事物管理器 @bean public platformtransactionmanager transactionmanager() { return new datasourcetransactionmanager(datasource()); } }
6.在src/main/resources下建立应用的配置文件application.properties。
#datasource spring.datasource.url=jdbc:mysql://127.0.0.1:3306/你的数据库名称?useunicode=true&characterencoding=utf8&zerodatetimebehavior=converttonull spring.datasource.username=数据库用户名 spring.datasource.password=数据库密码 spring.datasource.driver-class-name=com.mysql.jdbc.driver # freemarker (freemarkerautoconfiguration) spring.freemarker.allow-request-override=false spring.freemarker.allow-session-override=false spring.freemarker.cache=true spring.freemarker.charset=utf-8 spring.freemarker.check-template-location=true spring.freemarker.content-type=text/html spring.freemarker.enabled=true spring.freemarker.expose-request-attributes=false spring.freemarker.expose-session-attributes=false spring.freemarker.expose-spring-macro-helpers=true spring.freemarker.prefer-file-system-access=true spring.freemarker.suffix=.ftl spring.freemarker.template-loader-path=classpath:/templates/ spring.freemarker.settings.template_update_delay=0 spring.freemarker.settings.default_encoding=utf-8 spring.freemarker.settings.classic_compatible=true spring.freemarker.order=1 #server server.port=80
相应的配置需要根据自己的实际情况去做修改。
7.在在src/main/resources下创建mybatis目录并在目录下创建usermapper.xml文件:
<?xml version="1.0" encoding="utf-8"?> <!doctype mapper public "-//mybatis.org//dtd mapper 3.0//en" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.lm.dao.usermapper"> <select id="findall" resulttype="com.lm.model.user" parametertype="java.lang.string"> select id, username,password,email from t_user </select> </mapper>
8.创建usercontroller类和视图文件:
package com.lm.controller; import java.util.list; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.controller; import org.springframework.ui.modelmap; import org.springframework.web.bind.annotation.requestmapping; import com.lm.model.user; import com.lm.service.userservice; @controller @requestmapping("/user") public class usercontroller { @autowired private userservice userservice; @requestmapping("/list") public string list(modelmap map){ list<user> userlist=userservice.findall(); map.addattribute("userlist", userlist); return "/user/list"; } }
可以看出list方法返回的是一个字符串,因为我们给应用加载了freemarker模块做视图展现,所以需要创建一个list模板,模板所在的目录在application.properties中指定为spring.freemarker.template-loader-path=classpath:/templates/,所以我们需要在src/main/resources下创建templates目录,然后在templates下创建user目录,模板文件后缀在application.properties中指定为spring.freemarker.suffix=.ftl,所以最终建立一个list.ftl文件:
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>用户列表</title> </head> <body> <table> <tr> <th>id</th><th>用户名</th><th>密码</th><th>邮箱</th> </tr> <#list userlist as user> <tr> <td>${user.id}</td> <td>${user.username}</td><td>${user.password}</td><td>${user.email}</td> </tr> </#list> </table> </body> </html>
模板文件所在位置的目录结构如下图:
9.创建userservice接口:
package com.lm.service; import java.util.list; import com.lm.model.user; public interface userservice { list<user> findall(); }
10.创建userserviceimpl类实现userservice接口:
package com.lm.service.impl; import java.util.list; import org.springframework.beans.factory.annotation.autowired; import org.springframework.stereotype.service; import com.lm.dao.usermapper; import com.lm.model.user; import com.lm.service.userservice; @service public class userserviceimpl implements userservice{ @autowired private usermapper usermapper; @override public list<user> findall() { return usermapper.findall(); } }
11.创建usermapper接口:
package com.lm.dao; import java.util.list; import com.lm.model.user; public interface usermapper { list<user> findall(); }
12.创建实体类user:
package com.lm.model; public class user { private integer id; private string username; private string password; private string email; public integer getid() { return id; } public void setid(integer id) { this.id = id; } public string getusername() { return username; } public string getemail() { return email; } public void setemail(string email) { this.email = email; } public void setusername(string username) { this.username = username; } public string getpassword() { return password; } public void setpassword(string password) { this.password = password; } }
13.至此spring-boot框架已搭建完成,然后在application.java中run as >java application此时在控制台会看到如下日志输出:
14.打开浏览器在地址栏输入http://localhost/user/list便可以看到以下效果:
15.在pom.xml文件上右键run as>maven install可将项目打包为jar文件,生成的jar在target目录下,可以将此jar拷贝到服务器上通过"java -jar 最终生成jar包的名字"运行项目。
16.本项目的源码已经上传到,有需要的朋友可以自行下载
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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