传统项目springboot化---springmvc框架jsp

作者: 爱编程的凯哥 | 来源:发表于2019-02-13 05:51 被阅读62次

传统项目springboot化---springmvc框架jsp
第二章:springboot 整合JSP（打JAR针对多模块项目
SpringMVC初始化项目，jsp正常，Controller4
SpringBoot常见面试问题
java日常学习
基于springboot鲜花商城花礼网java花店系统
JS向后台传递列表参数
JSP引入外部文件遇到的一个问题
Spring综述
springmvc到springboot的演变过程

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

git@gitee.com: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

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- servlet 依赖. -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <!-- tomcat 的支持.-->
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>

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

  <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.5</version>
                <dependencies>
                    <dependency>
                        <groupId>mysql</groupId>
                        <artifactId>mysql-connector-java</artifactId>
                        <version>5.1.39</version>
                    </dependency>
                    <dependency>
                        <groupId>org.mybatis.generator</groupId>
                        <artifactId>mybatis-generator-core</artifactId>
                        <version>1.3.5</version>
                    </dependency>
                </dependencies>
                <executions>
                    <execution>
                        <id>Generate MyBatis Artifacts</id>
                        <phase>package</phase>
                        <goals>
                            <goal>generate</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <!--允许移动生成的文件 -->
                    <verbose>true</verbose>
                    <!-- 是否覆盖 -->
                    <overwrite>true</overwrite>
                    <!-- 自动生成的配置 -->
                    <configurationFile>
                        src/main/resources/mybatis-generator.xml</configurationFile>
                </configuration>
            </plugin>

        </plugins>
    </build>

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

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>

    <context id="DB2Tables"    targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库链接地址账号密码-->
        <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://local.p2.cn:3306/demotp" userId="root" password="yeepay.com">
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!--生成Model类存放位置-->
        <javaModelGenerator targetPackage="com.yeepay.power.entity" targetProject="src/main/java">
            <!--<property name="enableSubPackages" value="true"/>-->
            <!--<property name="trimStrings" value="true"/>-->
        </javaModelGenerator>
        <!--生成映射文件存放位置-->
        <sqlMapGenerator targetPackage="mybatis" targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!--生成Dao类存放位置-->
        <!-- 客户端代码，生成易于使用的针对Model对象和XML配置文件 的代码
                type="ANNOTATEDMAPPER",生成Java Model 和基于注解的Mapper对象
                type="MIXEDMAPPER",生成基于注解的Java Model 和相应的Mapper对象
                type="XMLMAPPER",生成SQLMap XML文件和独立的Mapper接口
        -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="com.yeepay.power.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!--生成对应表及类名-->
        <table tableName="users" domainObjectName="UserEntity" enableCountByExample="true" enableUpdateByExample="true" enableDeleteByExample="true" enableSelectByExample="true" ></table>
    </context>
</generatorConfiguration>

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

  <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>1.2.2</version>
        </dependency>

        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>

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

        <Logger name="com.yeepay.power.dao" level="DEBUG" />

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

  <build>
        <finalName>power-boss</finalName>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
            </resource>
            <resource>
                <directory>src/main/webapp</directory>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>${spring-boot.version}</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
  <plugins>

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

    <modelVersion>4.0.0</modelVersion>
    <artifactId>power-boss</artifactId>
    <version>${power.version}</version>
    <packaging>war</packaging>
    <name>power-boss</name>
    <description>power-boss</description>

好了，springmvc转springboot的常用涉及点基本够用了。

传统项目springboot化---springmvc框架jsp
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，s...
第二章:springboot 整合JSP（打JAR针对多模块项目
修改以前springmvc+jsp老项目，需要重新翻新，要求用springboot+jsp打jar，遇到比较多坑，...
SpringMVC初始化项目，jsp正常，Controller4
现象如标题 SpringMVC初始化项目，jsp正常，Controller404 （尽管现在jsp已经属于被淘汰的...
SpringBoot常见面试问题
上一篇 << >> 为什么要使用Springboot框架传统方式的搭建SpringMVC+Spring+Myba...
java日常学习
1、jsp、servlet增删改查项目 2、ssm框架增删改查 3、springboot增删改查
基于springboot鲜花商城花礼网java花店系统
开发技术：ssm springboot2.1.4 springMVC mybatis 前端jsp页面开发工具：e...
JS向后台传递列表参数
项目采用SpringMVC + JSP JS代码 Controller代码
JSP引入外部文件遇到的一个问题
今天搭建了一个项目，框架式Spring、SpringMVC和Mybatis，在JSP中引入js文件和css文件的时...
Spring综述
关键词：Spring框架、SpringIOC容器、SpringAOP、SpringMVC、Springboot、设...
springmvc到springboot的演变过程
springMvc到springboot的演变过程传统的springmvc的基本配置 1、下载springboo...