本文介绍了SpringBoot集成jsp（附源码）+遇到的坑 ，分享给大家
1、大体步骤
（1）创建Maven web project；
（2）在pom.xml文件添加依赖；
（3）配置application.properties支持jsp
（4）编写测试Controller
（5）编写JSP页面
（6）编写启动类App.java
2、新建SpringInitialzr
3、pom文件
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<
dependencies
>
<
dependency
>
<
groupId
>org.springframework.boot</
groupId
>
<
artifactId
>spring-boot-starter-web</
artifactId
>
</
dependency
>
<
dependency
>
<
groupId
>org.springframework.boot</
groupId
>
<
artifactId
>spring-boot-starter-tomcat</
artifactId
>
<
scope
>provided</
scope
>
</
dependency
>
<
dependency
>
<
groupId
>org.apache.tomcat.embed</
groupId
>
<
artifactId
>tomcat-embed-jasper</
artifactId
>
</
dependency
>
<
dependency
>
<
groupId
>org.springframework.boot</
groupId
>
<
artifactId
>spring-boot-starter-test</
artifactId
>
<
scope
>test</
scope
>
</
dependency
>
</
dependencies
>
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4、application.properties文件
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# 页面默认前缀目录
spring.mvc.view.prefix=/WEB-INF/jsp/
# 响应页面默认后缀
spring.mvc.view.suffix=.jsp
# 自定义属性，可以在Controller中读取
application.hello=Hello GOD
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5、Controller文件
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package
com.example;
import
org.springframework.beans.factory.annotation.Value;
import
org.springframework.stereotype.Controller;
import
org.springframework.web.bind.annotation.RequestMapping;
import
java.util.Map;
/**
* Created by Gensis on 2016/9/9.
*/
@Controller
public
class
HelloController {
// 从 application.properties 中读取配置，如取不到默认值为Hello
@Value
(
"${application.hello:Hello}"
)
private
String hello;
@RequestMapping
(
"/helloJsp"
)
public
String helloJsp(Map<String, Object> map) {
System.out.println(
"HelloController.helloJsp().hello="
+ hello);
map.put(
"hello"
, hello);
return
"helloJsp"
;
}
}
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6、jsp页面
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<%@ page language=
"java"
contentType=
"text/html; charset=UTF-8"
pageEncoding=
"UTF-8"
%>
<!DOCTYPE html PUBLIC
"-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd"
>
<html>
<head><meta http-equiv=
"Content-Type"
content=
"text/html; charset=UTF-8"
><title>GOD</title></head>
<body>
helloJsp
<hr>
${hello}
</body>
</html>
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7、遇到的问题
1、Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFactory bean
把pom中所有的<scope>provided</scope>注释掉
2、报404
<1>注意controller和restcontroller区别
<2>检查application.properties
<3>检查pom是否缺支持jsp包
3、Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
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org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.example.SampleWebJspApplication]; nested exception is java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:187) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:321) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:523) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:369) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:313) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1185) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1174) [spring-boot-1.4.0.RELEASE.jar:1.4.0.RELEASE]
at com.example.SampleWebJspApplication.main(SampleWebJspApplication.java:20) [classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_77]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_77]
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na]
Caused by: java.lang.IllegalStateException: Failed to introspect annotated methods on class org.springframework.boot.web.support.SpringBootServletInitializer
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:163) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:301) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:237) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:204) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:173) ~[spring-context-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 17 common frames omitted
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解决方案：添加以下依赖
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<
dependency
>
<
groupId
>org.apache.tomcat.embed</
groupId
>
<
artifactId
>tomcat-embed-jasper</
artifactId
>
</
dependency
>
|
4、java.lang.NoClassDefFoundError: javax/servlet/ServletContext
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Caused by: java.lang.NoClassDefFoundError: javax/servlet/ServletContext
at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_77]
at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_77]
at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_77]
at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:152) ~[spring-core-4.3.2.RELEASE.jar:4.3.2.RELEASE]
... 21 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.servlet.ServletContext
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_77]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_77]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_77]
... 25 common frames omitted
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解决方案：添加
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<
dependency
>
<
groupId
>javax.servlet</
groupId
>
<
artifactId
>javax.servlet-api</
artifactId
>
</
dependency
>
<
dependency
>
<
groupId
>javax.servlet</
groupId
>
<
artifactId
>jstl</
artifactId
>
</
dependency
>
|
删除其他依赖中的<scope>provided</scope>
8、源码地址
https://github.com/Genesisxu/SpringSeries/tree/master/SpringBoot-jsp