spring boot教程

最近配置spring boot费了上些功夫,其实之前也用过只不过时间相隔太久了,而且自己没有做相应的整理,导致再次使用要重新学一遍,这次配置完后我决定把配置过程写下来,整理一下记。

一、整体结构。

spring boot用起来还是比写servlet要方便的多,结构也简单的多。使用idea建立spring boot项目,之后通过pom.xml下载jar包

spring boot教程_第1张图片

1、spring boot启动程序入口

Web03Application 这个类在建时会自动创建,以后就在这里启动程序

代码如下:

packagecom.keduox;

importorg.springframework.boot.SpringApplication;

importorg.springframework.boot.autoconfigure.SpringBootApplication;

importorg.springframework.context.annotation.ComponentScan;

@SpringBootApplication

public classWeb03Application {

public static voidmain(String[] args) {

SpringApplication.run(Web03Application.class,args);

}

}

2、pom文件的配置

我用到了Mybaits、mysql导的包如下:

spring boot教程_第2张图片

3、application.property作相应的配置

代码如下:

spring.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.datasource.url=jdbc:mysql://192.168.200.11:3306/mydb02

spring.datasource.username=root

spring.datasource.password=1234

spring.datasource.type=org.apache.tomcat.jdbc.pool.DataSource

# Specify the DBMS

spring.jpa.database=MYSQL

# Show or not log for each sql query

spring.jpa.show-sql=true

#配置Mybatis

mybatis.typeAliasesPackage=com.example.entity

4、MainController中的代码

packagecom.example.controller;

importcom.example.entity.User;

importcom.example.service.MyService;

importorg.springframework.beans.factory.annotation.Autowired;

importorg.springframework.stereotype.Controller;

importorg.springframework.web.bind.annotation.RequestMapping;

importorg.springframework.web.bind.annotation.ResponseBody;

importjava.util.ArrayList;

importjava.util.HashMap;

importjava.util.List;

importjava.util.Map;

@Controller

public classMainController {

@Autowired

privateMyServicems;

@RequestMapping("/view")

publicStringttt(){

return"index.html";

}

@RequestMapping("/getData")

@ResponseBody

publicMap>getData(){

Map> map =newHashMap>();

List fnls =newArrayList();

List prls =newArrayList();

List ls =ms.selectAll();

for(User u : ls){

System.out.println(u.getfName() +" : "+ u.getPrice());

fnls.add(u.getfName());

prls.add(""+u.getPrice());

}

map.put("fNmae",fnls);

map.put("price",prls);

returnmap;

}

@RequestMapping("/getNameAndPrice")

@ResponseBody

publicMap>getData2(){

Map> map =newHashMap>();

List fnls =newArrayList();

List prls =newArrayList();

List ls =ms.getNameAndPrice();

for(User u : ls){

System.out.println("dd :\t"+u.getfName() +" : "+ u.getPrice());

fnls.add(u.getfName());

prls.add(""+u.getPrice());

}

map.put("fNmae",fnls);

map.put("price",prls);

returnmap;

}

}

5、UserDao中的代码

packagecom.example.dao;

importcom.example.entity.User;

importorg.apache.ibatis.annotations.Mapper;

importorg.apache.ibatis.annotations.Result;

importorg.apache.ibatis.annotations.Results;

importorg.apache.ibatis.annotations.Select;

importjava.util.List;

@Mapper

public interfaceUserDao {

@Select("select * from pro")

@Results({

@Result(property="id",column="id"),

@Result(property="fName",column="fName"),

@Result(property="price",column="price"),

@Result(property="area",column="area"),

@Result(property="cinema",column="cinema"),

})

publicListlist();

@Select("select fName,price from pro group by fName")

@Results({

//            @Result(property = "id", column = "id"),

@Result(property="fName",column="fName"),

@Result(property="price",column="price"),

//            @Result(property = "area", column = "area"),

//            @Result(property = "cinema", column = "cinema"),

})

publicListgetNameAndPrice();

}

6、User中的代码(不需要加注解的)

packagecom.example.entity;

importjava.io.Serializable;

/**

* Created by zhend on 2017/9/18.

*/

//@Entity

//@Table(name = "mydb02")

public classUserimplementsSerializable{

//    @Id

//    @GeneratedValue(strategy= GenerationType.AUTO)

//    @Column(name = "id")

private intid;

//    @Column(name="fName")

privateStringfName;

//    @Column(name = "price")

private intprice;

//    @Column(name = "area")

privateStringarea;

//    @Column(name = "cinema")

privateStringcinema;

publicUser() {

}

publicUser(String fName, intprice,String area,String cinema) {

this.fName= fName;

this.price= price;

this.area= area;

this.cinema= cinema;

}

public voidsetId(intid) {

this.id= id;

}

public voidsetfName(String fName) {

this.fName= fName;

}

public voidsetPrice(intprice) {

this.price= price;

}

public voidsetArea(String area) {

this.area= area;

}

public voidsetCinema(String cinema) {

this.cinema= cinema;

}

public intgetId() {

returnid;

}

publicStringgetfName() {

returnfName;

}

public intgetPrice() {

returnprice;

}

publicStringgetArea() {

returnarea;

}

publicStringgetCinema() {

returncinema;

}

@Override

publicStringtoString() {

return"User{"+

"id="+id+

", fName='"+fName+'\''+

", price="+price+

", area='"+area+'\''+

", cinema='"+cinema+'\''+

'}';

}

}

7、MyService中的代码

packagecom.example.entity;

importjava.io.Serializable;

/**

* Created by zhend on 2017/9/18.

*/

//@Entity

//@Table(name = "mydb02")

public classUserimplementsSerializable{

//    @Id

//    @GeneratedValue(strategy= GenerationType.AUTO)

//    @Column(name = "id")

private intid;

//    @Column(name="fName")

privateStringfName;

//    @Column(name = "price")

private intprice;

//    @Column(name = "area")

privateStringarea;

//    @Column(name = "cinema")

privateStringcinema;

publicUser() {

}

publicUser(String fName, intprice,String area,String cinema) {

this.fName= fName;

this.price= price;

this.area= area;

this.cinema= cinema;

}

public voidsetId(intid) {

this.id= id;

}

public voidsetfName(String fName) {

this.fName= fName;

}

public voidsetPrice(intprice) {

this.price= price;

}

public voidsetArea(String area) {

this.area= area;

}

public voidsetCinema(String cinema) {

this.cinema= cinema;

}

public intgetId() {

returnid;

}

publicStringgetfName() {

returnfName;

}

public intgetPrice() {

returnprice;

}

publicStringgetArea() {

returnarea;

}

publicStringgetCinema() {

returncinema;

}

@Override

publicStringtoString() {

return"User{"+

"id="+id+

", fName='"+fName+'\''+

", price="+price+

", area='"+area+'\''+

", cinema='"+cinema+'\''+

'}';

}

}

8、MyServiceImpl中的代码

packagecom.example.service;

importcom.example.dao.UserDao;

importcom.example.entity.User;

importorg.springframework.beans.factory.annotation.Autowired;

importorg.springframework.stereotype.Service;

importjava.util.List;

/**

* Created by zhend on 2017/9/18.

*/

@Service

public classServiceImplimplementsMyService{

@Autowired

privateUserDaodd;

@Override

publicListselectAll() {

returndd.list();

}

@Override

publicListgetNameAndPrice() {

returndd.getNameAndPrice();

}

}

9、index.html中的代码

// 基于准备好的dom,初始化echarts实例

varmyChart = echarts.init(document.getElementById('main'));

// 指定图表的配置项和数据

myChart.setOption({

title: {

text:'电影票房'

},

tooltip: {},

legend: {

data:['销量']

},

xAxis: {

data:[]

},

yAxis: {},

series: [{

name:'票房',

type:'bar',

data:[]

}]

});

// 使用刚指定的配置项和数据显示图表。

$.get('/getNameAndPrice').done(function(data) {

myChart.setOption({

xAxis: {

data:data.fNmae

},

series: [{

name:'票房',

type:'bar',

data:data.price

}]

})

})

/*$.get('/getNameAndPrice').done(function (data) {

alert(data)

})*/

注:另外要导两个jar包

你可能感兴趣的:(spring boot教程)