java - multiple issues with spring tool suite 3.6.3 release -


i have wanted learn spring mvc , took @ javavids - youtube, wanted follow along series have multiple problems/issues first rebuild global repo in maven repositories

solved

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then created maven project structure in videos

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but have instead

solved

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ok want add plugins pom.xml getting dialog in videos shows :

update
enter image description here
don't plug-in select
enter image description here
solved
have compiler compliance enter image description here when set compiler java 1.7
solved
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and @ last when tried update sts 3.6.3 freezes , shows enter image description here
ok
have proxy settings

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update make changes , add dependency according answer
error:
enter image description here
now don't see resources can me these remaining issues resolved! highly appreciated.

first maven default compiler level set 1.5. in order set 1.7 either configure maven-compiler-plugin 

<plugin>         <groupid>org.apache.maven.plugins</groupid>         <artifactid>maven-compiler-plugin</artifactid>         <version>3.3</version>         <configuration>           <source>1.7</source>           <target>1.7</target>         </configuration> </plugin>

or add following properties.

<properties>     <maven.compiler.source>1.7</maven.compiler.source>     <maven.compiler.target>1.7</maven.compiler.target> </properties>

after setting java version press alt+f5 update maven project.

in order search dependency or plugins go window -> preferences -> maven , check download repository index update on startup

restart sts, wait index updates complete.

regarding project structure check have <packaging>war</packaging> in pom.xml. default jar type.


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