Question

我试图获取一个json文件资源，以便使用它来构建一个java对象。当我尝试在Intellij中运行我的代码时，我没有任何问题，但当我使用mvn test运行时，我得到了跟随错误。

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test (default-test) on project cadastur-backend-business: Execution default-test of goal org.apache.maven.plugins:maven-surefire-plugin:2.18.1:test failed: There was an error in the forked process
[ERROR] java.lang.RuntimeException: Unable to create test class 'guiaVOTemplate.json'
[ERROR] at org.apache.maven.surefire.util.DefaultScanResult.loadClass(DefaultScanResult.java:135)
[ERROR] at org.apache.maven.surefire.util.DefaultScanResult.applyFilter(DefaultScanResult.java:95)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.scanClassPath(JUnit4Provider.java:222)
[ERROR] at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:107)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
[ERROR] at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
[ERROR] Caused by: java.lang.ClassNotFoundException: guiaVOTemplate.json
[ERROR] at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
[ERROR] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
[ERROR] at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
[ERROR] at org.apache.maven.surefire.util.DefaultScanResult.loadClass(DefaultScanResult.java:131)
[ERROR] ... 6 more
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :cadastur-backend-business

该项目具有以下结构：

Project Structure Image

上面有代码，我试图读取文件并将json转换为java对象。

package br.gov.mtur.cadastur.builder;

import br.gov.mtur.cadastur.vo.*;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.IOException;

public class GuiaVOBuilder {

    private GuiaVO guia;

    public GuiaVOBuilder() {
        this.guia = new GuiaVO();
    }

    public GuiaVOBuilder comId(Integer id) {
        guia.setId(id);
        return this;
    }

    public GuiaVOBuilder comPessoaFisica(PessoaFisicaVO pessoaFisica) {
        guia.setPessoaFisica(pessoaFisica);
        return this;
    }

    ... //Builder methods

    public GuiaVO build(){
        return guia;
    }

    public GuiaVO buildGuiaCompleto() throws IOException {
        return new ObjectMapper().readValue(GuiaVOBuilder.class.getResource("/guiaVOTemplate.json"), GuiaVO.class);
    }
}

Answer 1

将guiaVOTemplate.json文件复制到src\main\resources，它应该有效。

Answer 2

我发现我的错误，在主pom.xml中，maven-surefire-plugin包含了所有文件，因此我得到了Unable to create test class 'guiaVOTemplate.json'。因此，我可以在排除列表中解析此扩展名为.json的放置文件，如下所示。我的guiaVOTemplate.json仍在src/test/resources。

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-surefire-plugin</artifactId>
    <version>2.18.1</version>
    <configuration>
        <includes>
            <include>**/*</include>
        </includes>
        <excludes>
            <exclude>**/*.json</exclude>
        </excludes>
     </configuration>
</plugin>

使用maven获取测试文件资源

2 个答案: