IDEA+Gradle+SpringBoot 創建spring web項目，SpringBoot集成html，JSP

 

前提：

1. 本地安裝了jdk，並配置系統變量JAVA_HOME,Path
2. 本地下載了gradle-4.10u並配hu系統變量GRAhuLEchHOME，Path

1.打開IDEA,創建project項目

2.項目管理工具選擇gradle，點擊Next

3.勾選項目基本組成部分

4.點擊Finish創建項目

5.項目目錄結構如下，標紅部分是自己創的

注意，如果demoo2項目文件夾爲普通文件，無法新建package，需要點擊如下圖標，將src標註爲Source

6.編輯WelcomeController的內容

7.編輯index.html的內容

8.配置build.gradle的內容

文本如下

plugins {
    id 'org.springframework.boot' version '2.1.4.RELEASE'
    id 'java'
}

apply plugin: 'io.spring.dependency-management'

group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-jdbc'
    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-web-services'
    implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.0.1'
    runtimeOnly 'org.springframework.boot:spring-boot-devtools'
    runtimeOnly 'mysql:mysql-connector-java'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    compile group:'org.springframework.boot',name:'spring-boot-devtools',version: '2.0.4.RELEASE'//熱部署
}

9.配置application.properties文件，內容如下

文本如下：

spring.datasource.url=jdbc:mysql:/localhost:3306/test?useUnicode=true&CharacterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver


spring.thymeleaf.cache=false

10.配置完畢，啓動項目

注意，默認端口是8080，你可以在application.properties文件中添加server.port=8090進行修改端口號，瀏覽器中輸入：

localhost:8090/welcome即可。 

 

spring boot默認是集成html頁面的，如果頁面需要傳參，那麼就需要集成jsp

SpringBoot集成jsp

1.application.properties文件內容更改爲：

spring.datasource.url=jdbc:mysql:/localhost:3306/test?useUnicode=true&CharacterEncoding=utf8
spring.datasource.username=root
spring.datasource.password=123456
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

#主要配置
spring.thymeleaf.cache=false
spring.thymeleaf.enabled=false
spring.mvc.static-path-pattern=/**
spring.resources.static-locations=classpath:/,classpath:/static,classpath:/templates
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

2.build.gradle依賴如下

plugins {
    id 'org.springframework.boot' version '2.1.5.RELEASE'
    id 'java'
}

apply plugin: 'io.spring.dependency-management'

group = 'com.zy'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-jdbc'
    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 

    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-web-services'
    implementation 'org.mybatis.spring.boot:mybatis-spring-boot-starter:2.0.1'
    runtimeOnly 'org.springframework.boot:spring-boot-devtools'
    runtimeOnly 'com.h2database:h2'
    runtimeOnly 'mysql:mysql-connector-java'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    
    //注意點
    compile 'javax.servlet:jstl:1.2'
    compile 'org.apache.tomcat.embed:tomcat-embed-jasper'
    compile 'org.springframework.boot:spring-boot-starter-web'
    compile group:'javax.servlet',name:'javax.servlet-api'
    compile group:'org.springframework.boot',name:'spring-boot-starter-tomcat'
}

3.新增目錄結構：

4.啓動類集成SpringBootServletInitializer類，重寫 configure 方法

 代碼如下：

package com.zy.demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;

@SpringBootApplication
public class DemoApplication extends SpringBootServletInitializer {
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
        return builder.sources(DemoApplication.class);
    }
    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
    }

}

啓動項目正常訪問即可