这篇文章主要介绍“SpringBoot 2.x支持jsp使用jar方式部署吗”，在日常操作中，相信很多人在SpringBoot 2.x支持jsp使用jar方式部署吗问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”SpringBoot 2.x支持jsp使用jar方式部署吗”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
一 pom.xml文件修改
1 增加tomcat jsp 依赖
<!-- 添加servlet依赖模块 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <scope>provided</scope> </dependency> <!--jsp依赖jar--> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>javax.servlet.jsp-api</artifactId> <version>2.3.1</version> </dependency> <!-- 添加jstl标签库依赖模块 --> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> </dependency> <!--添加tomcat依赖模块.--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-tomcat</artifactId> <scope>provided</scope> </dependency> <!-- 使用jsp引擎，springboot内置tomcat没有此依赖 --> <dependency> <groupId>org.apache.tomcat.embed</groupId> <artifactId>tomcat-embed-jasper</artifactId> <version>9.0.27</version> <scope>provided</scope> </dependency>
2 修改资源打包配置
<resources> <resource> <!--打包成jar静态资源必须指明路径，打包成war可以不用--> <directory>src/main/webapp</directory> <targetPath>META-INF/resources</targetPath> <includes> <include>**/**</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/**</include> </includes> </resource> </resources>
二 项目目录
增加目录 src/main/webapp，目录中可加入jsp相关文件
application.properties中加入
spring.mvc.view.prefix=/WEB-INF/views/
spring.mvc.view.suffix=.jsp
#支持jsp debugger
server.servlet.jsp.init-parameters.development=true
三 修改代码
增加转换配置
StaticResourceConfigurer.java
package com.vipkid.configuration;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import org.apache.catalina.Context;
import org.apache.catalina.Lifecycle;
import org.apache.catalina.LifecycleEvent;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.WebResourceRoot.ResourceSetType;
import org.springframework.util.ResourceUtils;
/**
* 资源路径转换配置
* Add main class fat jar/exploded directory into tomcat ResourceSet.
*
* @author zouqinghua
* @date 2019年10月30日 下午9:44:34
*
*/
public class StaticResourceConfigurer implements LifecycleListener {
private final Context context;
StaticResourceConfigurer(Context context) {
this.context = context;
}
@Override
public void lifecycleEvent(LifecycleEvent event) {
if (event.getType().equals(Lifecycle.CONFIGURE_START_EVENT)) {
URL location = this.getClass().getProtectionDomain().getCodeSource().getLocation();
if (ResourceUtils.isFileURL(location)) {
// when run as exploded directory
String rootFile = location.getFile();
if (rootFile.endsWith("/BOOT-INF/classes/")) {
rootFile = rootFile.substring(0, rootFile.length() - "/BOOT-INF/classes/".length() + 1);
}
if (!new File(rootFile, "META-INF" + File.separator + "resources").isDirectory()) {
return;
}
try {
location = new File(rootFile).toURI().toURL();
} catch (MalformedURLException e) {
throw new IllegalStateException("Can not add tomcat resources", e);
}
}
String locationStr = location.toString();
if (locationStr.endsWith("/BOOT-INF/classes!/")) {
// when run as fat jar
locationStr = locationStr.substring(0, locationStr.length() - "/BOOT-INF/classes!/".length() + 1);
try {
location = new URL(locationStr);
} catch (MalformedURLException e) {
throw new IllegalStateException("Can not add tomcat resources", e);
}
}
this.context.getResources().createWebResourceSet(ResourceSetType.RESOURCE_JAR, "/", location,
"/META-INF/resources");
}
}
}增加监听类 TomcatConfiguration.jsp
package com.vipkid.configuration;
import org.apache.catalina.Context;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.web.embedded.tomcat.ConfigurableTomcatWebServerFactory;
import org.springframework.boot.web.embedded.tomcat.TomcatContextCustomizer;
import org.springframework.boot.web.server.WebServerFactory;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.boot.web.servlet.server.ConfigurableServletWebServerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
/**
* 配置 addLifecycleListener
* @author zouqinghua
* @date 2019年10月30日 下午9:45:28
*
*/
@Order(Ordered.HIGHEST_PRECEDENCE)
@Configuration
@ConditionalOnProperty(name = "tomcat.staticResourceCustomizer.enabled", matchIfMissing = true)
public class TomcatConfiguration {
/*
*
* SpringBoot 1.x方式配置
@return
@Bean
public EmbeddedServletContainerCustomizer staticResourceCustomizer() {
return new EmbeddedServletContainerCustomizer() {
@Override
public void customize(ConfigurableEmbeddedServletContainer container) {
if (container instanceof TomcatEmbeddedServletContainerFactory) {
((TomcatEmbeddedServletContainerFactory) container)
.addContextCustomizers(new TomcatContextCustomizer() {
@Override
public void customize(Context context) {
context.addLifecycleListener(new StaticResourceConfigurer(context));
}
});
}
}
};
}
*/
/**
* SpringBoot 2.x方式配置
* @return
*/
@Bean
public WebServerFactoryCustomizer webServerFactoryCustomizerBean(){
return new WebServerFactoryCustomizer<ConfigurableTomcatWebServerFactory>() {
@Override
public void customize(ConfigurableTomcatWebServerFactory factory) {
factory.addContextCustomizers(new TomcatContextCustomizer() {
@Override
public void customize(Context context) {
context.addLifecycleListener(new StaticResourceConfigurer(context));
}
});
}
};
}
}四 代码
IndexController和
src/main/webapp/WEB-INF/views/hello.jsp
package com.smc.sys.web;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
public class IndexController {
@RequestMapping("/hello")
public String index(){
System.out.println("index ==== >>");
return "hello";
}
}<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Pragma", "no-cache");
response.setHeader("Expires", "0");
%><%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<c:set var="ctx" value="${pageContext['request'].contextPath}" />
<html>
<body>
<h2>Hello World - ${name}</h2>
</body>
</html>五 打包 启动
mvn clean package -Dmaven.test.skip=true
java -jar target/xxx.jar
六 访问
http://localhost:8080/hello
到此，关于“SpringBoot 2.x支持jsp使用jar方式部署吗”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注亿速云网站，小编会继续努力为大家带来更多实用的文章！
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