Solve problems that occur in maven projects

1, Open the newly created servlet file for example (hibernate.cfg.xml) and modify the header file to

"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration -3.0.dtd">

2. Open the .settings folder in the project directory

2.1Modify the project settings and open org.eclipse in the project.settings directory .jdt.core.prefs (open a tool such as NOTEPAD++)

Change 1.5 to 1.8, for example:

1 eclipse.preferences.version=12 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled3 org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.84 org.eclipse.jdt.core.compiler.compliance=1.85 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error6 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error7 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning8 org.eclipse.jdt.core.compiler.source=1.8

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2.2Open org.eclipse.wst.common.project.facet.core.xml

Change to , change Change to

##

1 <?xml version="1.0" encoding="UTF-8"?>2 <faceted-project>3   <fixed facet="wst.jsdt.web"/>4   <installed facet="jst.web" version="3.0"/>5   <installed facet="wst.jsdt.web" version="1.0"/>6   <installed facet="jboss.m2" version="1.0"/>7   <installed facet="java" version="1.8"/>8   <installed facet="jst.cdi" version="1.0"/>9 </faceted-project>

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3,

Open the pom.xml file that stores dependencies, and modify the bottom

D5.22hotai

is

 1  <build> 2     <finalName>D5.22hotai</finalName> 3      <plugins>  
 4         <plugin>  
 5             <groupId>org.apache.maven.plugins</groupId>  
 6             <artifactId>maven-compiler-plugin</artifactId>  
 7             <version>3.3</version>  
 8             <configuration>  
 9                 <!-- 指定source和target的版本 -->                 
10                 <source>1.8</source>  
11                 <target>1.8</target>  
12             </configuration>  
13         </plugin>  
14     </plugins>  
15   </build>

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4. Restart eclipse or right-click the project maven → Update Project...

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