目标
对于一些还在使用springmvc的老项目需要springboot化时的一些改造点梳理，附上demo代码，spring-boot版本1.5.9
demo代码
[email protected]:kaiyang_taichi/springmvc2boot.git
备注：此代码本文的第8和第9的改动，所以以java -jar的形式运行会有问题，请参考自行修改
改造点
- 创建项目，支持jsp
springboot支持jsp需要加入如下依赖
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-logging
org.springframework.boot
spring-boot-starter
org.springframework.boot
spring-boot-starter-logging
javax.servlet
javax.servlet-api
provided
javax.servlet
jstl
org.apache.tomcat.embed
tomcat-embed-jasper
provided
同时application.yml中添加view解析配置，根目录放入webapp目录，然后WEB-INF/page都放在webapp下
spring:
mvc:
view:
prefix: /WEB-INF/page/
suffix: .jsp
#关闭模版引擎
thymeleaf:
cache: false
enabled: false
application:
name: power-boss
- 添加过滤器
过滤器添加有注解和代码配置两种，注解方法如下
@WebFilter(filterName = "testFilter",urlPatterns = {"/app/*"})
public class TestFilter implements Filter {
private Logger LOGGER= LoggerFactory.getLogger(getClass());
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
LOGGER.info("请求filer");
filterChain.doFilter(servletRequest,servletResponse);
}
@Override
public void destroy() {
}
}
同时在springboot入口添加注解ServletComponentScan
@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})
@ServletComponentScan
public class BossStartApplication {
public static void main(String[] args) {
SpringApplication.run(BossStartApplication.class, args);
}
}
- 配置静态资源
静态资源配置通过继承WebMvcConfigurerAdapter配置
package com.yeepay.power.configuration;
import com.yeepay.power.interceptor.TestInterceptor;
import com.yeepay.power.interceptor.TestInterceptor2;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
@Configuration
public class SpringMvcConfiguration extends WebMvcConfigurerAdapter {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(new TestInterceptor()).addPathPatterns("/app/*");
registry.addInterceptor(new TestInterceptor2()).addPathPatterns("/app/*");
super.addInterceptors(registry);
}
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/images/**").addResourceLocations("classpath:/images/");
registry.addResourceHandler("/css/**").addResourceLocations("classpath:/css/");
registry.addResourceHandler("/js/**").addResourceLocations("classpath:/js/");
super.addResourceHandlers(registry);
}
@Override
public void addViewControllers(ViewControllerRegistry registry) {
//配置根目录欢迎页
registry.addViewController("/").setViewName("demo");
super.addViewControllers(registry);
}
}
-
配置springmvc拦截器
同3的方法配置，其中添加addInterceptors即可
配置上传资源限制
在yml中添加配置
spring:
mvc:
view:
prefix: /WEB-INF/page/
suffix: .jsp
#关闭模版引擎
thymeleaf:
cache: false
enabled: false
application:
name: power-boss
http:
multipart:
#配置上传大小
max-file-size: 10Mb
max-request-size: 10Mb
- mybatis-generator集成
一. 添加pom配置
org.springframework.boot
spring-boot-maven-plugin
org.apache.maven.plugins
maven-compiler-plugin
1.8
1.8
org.mybatis.generator
mybatis-generator-maven-plugin
1.3.5
mysql
mysql-connector-java
5.1.39
org.mybatis.generator
mybatis-generator-core
1.3.5
Generate MyBatis Artifacts
package
generate
true
true
src/main/resources/mybatis-generator.xml
添加好plugin,下面添加generator的配置文件src/main/resources/mybatis-generator.xml,其中具体类名、包名根据需要自己修改
maven执行命令mybatis-generator:generate即可
maven.gif
切记：每次最好重新生成文件，否则generator可能会有追加mapper的情况，造成文件报错,如Result Maps collection already contains value.....
- springboot集成mybatis+c3p0
一. 添加pom
mysql
mysql-connector-java
runtime
org.mybatis.spring.boot
mybatis-spring-boot-starter
1.2.2
c3p0
c3p0
0.9.1.2
二. application.yml添加配置
spring:
datasource:
url: jdbc:mysql://local.p2.cn:3306/demotp?useSSL=true
username: root
password: yeepay.com
driver-class-name: com.mysql.jdbc.Driver
type: com.mchange.v2.c3p0.ComboPooledDataSource
mybatis:
mapper-locations: classpath:mybatis/*Mapper.xml
type-aliases-package: com.yeepay.power.entity
configuration:
##开启驼峰
map-underscore-to-camel-case: true
default-fetch-size: 500
default-statement-timeout: 80
三. 入口加注解
package com.yeepay.power;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.web.servlet.ServletComponentScan;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.sql.DataSource;
@SpringBootApplication
@ServletComponentScan
//事务相关
@EnableTransactionManagement
//dao 类 扫描
@MapperScan(basePackages = "com.yeepay.power.dao")
public class BossStartApplication {
public static void main(String[] args) {
SpringApplication.run(BossStartApplication.class, args);
}
}
注意：DataSourceAutoConfiguration.class千万不要execule,否则数据库无法加载
到此mybatis集成完了，网上有很多说sqlsessionFactory报错的，要自己写配置类注入，有人说是高版本问题（这个我没验证，我这个版本是没问题），一开始我也报过这个错是因为DataSourceAutoConfiguration.class被execule了。
四. 对于调试看数据库sql，只需要配置dao层的包未DEBUG即可，底层生成了代理类,如
- 打包配置，springboot项目正常打包资源包默认只会打包resources，webapp不会打包，所以pom需要添加如下配置,指定打包时添加webapp目录
power-boss
src/main/resources
src/main/webapp
org.springframework.boot
spring-boot-maven-plugin
${spring-boot.version}
repackage
org.apache.maven.plugins
maven-compiler-plugin
1.8
1.8
- 并且webapp目录要配套项目必须打包成war文件，否则也找不到jsp页面
4.0.0
power-boss
${power.version}
war
power-boss
power-boss
好了，springmvc转springboot的常用涉及点基本够用了。