Spring Cloud (4) | NoSuchMethodError:javax.servlet.ServletContext.getVirtualServerName()

the method

getVirtualServerName

has been added in ServletContext in Servlet 3.1. Find the java doc’s method getVirtualServerName

this problem can have at least 3 causes:

your servlet version is older that 3.1.

other jar has the servlet older version than 3.1.

your tomcat version is older than 8

to solve it, you can try the below way.

I. to check your pom.xml whether there are the below code.

<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>

if your pom.xml has the above code, it would still has that problem. you can do the second way.

II. to check your other jar has refer to the

javax.servlet-api

jar. for example, the

org.apache.santuario

has refer to the

javax.servlet-api

jar. the pom.xml:

<dependency>
<groupId>org.apache.santuario</groupId>
<artifactId>xmlsec</artifactId>
<version>1.4.3</version>
</dependency>

but when you look at the maven dependencies, it refer to the

javax.servlet-api

jar whose version is 2.3 older than 3.1.





so you should exclude the 2.3 version. pom.xml:

<!-- exclude servlet-api 2.3 jar-->
<dependency>
<groupId>org.apache.santuario</groupId>
<artifactId>xmlsec</artifactId>
<version>1.4.3</version>
<exclusions>
<exclusion>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
</exclusion>
</exclusions>
</dependency>

<!-- servlet-api 3.1 version has getVirtualServerName() -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
</dependency>

III. spring boot run the default tomcat 7. so define your tomcat version 8 instead of tomcat 7. To add the code your pom.xml:

<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<tomcat.version>8.5.5</tomcat.version>
</properties>

原文链接：https://stackoverflow.com/questions/34950164/getting-nosuchmethoderrorjavax-servlet-servletcontext-getvirtualservername/47503564#47503564

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