java - MongoDB 一些数据没有加载到 java tomcat 应用程序中

Question

我不知道是什么导致了这个问题。本质上，我有一个连接到托管 mongo 数据库的 java webapp。我使用如下所示的新存储库向应用程序添加了一个新集合。

public interface ContractRepository extends PagingAndSortingRepository<Contract, String> {
public Contract findByNameIgnoreCase(String name);
public List<Contract> findByOwnerCompany(Company c);
}

一切正常数据被添加到数据库中，并被加载到应用程序中。然后我们推出了一个新版本，它不再从数据库中提取数据，但数据库中没有数据丢失。我手动添加了新记录，它们会正常显示。从那时起，我们手动添加了所有记录，并且在下一次更新之前一直运行良好。同样的问题。

POM:

http://maven.apache.org/maven-v4_0_0.xsd"> 公司网 申请人跟踪系统 1.0.0

<modelVersion>4.0.0</modelVersion>
<groupId>net.company.com</groupId>
<artifactId>ats-web</artifactId>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
    <org.slf4j-version>1.7.7</org.slf4j-version>
    <java-version>1.8</java-version>
    <debug>true</debug>
</properties>
<dependencyManagement>
    <dependencies>
        <!--            <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-framework-bom</artifactId>
            <version>4.0.6.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.2.2.RELEASE</version>
            <type>pom</type>
            <scope>import</scope>
        </dependency>
    </dependencies>
</dependencyManagement>
<dependencies>
    <dependency>
        <groupId>net.acesinc.ats</groupId>
        <artifactId>ats-model</artifactId>
        <version>1.0.0-BUILD-SNAPSHOT</version>
    </dependency>
    <dependency>
        <groupId>net.company.com</groupId>
        <artifactId>ats-resume-parser</artifactId>
        <version>1.0.0</version>
    </dependency>
    <!-- Spring -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <exclusions>
            <!-- exclude their default logging logback so we can use log4j -->
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-tomcat</artifactId>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-spring-service-connector</artifactId>
        <version>1.0.0.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-cloudfoundry-connector</artifactId>
        <version>1.0.0.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>com.googlecode.json-simple</groupId>
        <artifactId>json-simple</artifactId>
        <version>1.1</version>
    </dependency>

    <!-- include the log4j logger -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-websocket</artifactId>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-messaging</artifactId>
    </dependency>

    <!-- Spring Data -->
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-commons</artifactId>
        <version>1.9.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-mongodb</artifactId>
        <version>1.6.1.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>com.mysema.querydsl</groupId>
        <artifactId>querydsl-mongodb</artifactId>
        <version>3.5.1</version>
    </dependency>

    <!-- Security -->
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-core</artifactId>
        <version>4.0.0.RELEASE</version>
        <exclusions>
             <!--Exclude Commons Logging in favor of SLF4j-->
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-web</artifactId>
        <version>4.0.0.RELEASE</version>
        <exclusions>
            <!-- Exclude Commons Logging in favor of SLF4j -->
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>4.0.0.RELEASE</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-all</artifactId>
        <version>1.9.5</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-taglibs</artifactId>
        <version>4.0.0.RELEASE</version>
        <exclusions>
            <!-- Exclude Commons Logging in favor of SLF4j -->
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-config</artifactId>
        <version>4.0.0.RELEASE</version>
        <exclusions>
            <!-- Exclude Commons Logging in favor of SLF4j -->
            <exclusion>
                <groupId>commons-logging</groupId>
                <artifactId>commons-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.security</groupId>
        <artifactId>spring-security-crypto</artifactId>
        <version>4.0.0.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.thymeleaf</groupId>
        <artifactId>thymeleaf-spring4</artifactId>
        <version>2.1.3.RELEASE</version>
    </dependency>
    <!-- Servlet -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>2.1</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>com.sun.jersey</groupId>
        <artifactId>jersey-client</artifactId>
        <version>1.8-ea02</version>
        <scope>compile</scope>
    </dependency>
    <dependency>
        <groupId>javax.ws.rs</groupId>
        <artifactId>jsr311-api</artifactId>
        <version>1.1.1</version>
        <scope>compile</scope>
    </dependency>

    <!-- Apache Commons file upload  -->
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.3.5</version>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.10</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpmime</artifactId>
        <version>4.3.5</version>
    </dependency>

    <!-- Apache Commons IO -->
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.4</version>
    </dependency>
</dependencies>
<repositories>
    <!-- These are set in the settings.xml to our nexus repo -->
</repositories>
<pluginRepositories>
    <!-- These are set in the settings.xml to our nexus repo -->
</pluginRepositories>
<build>
    <finalName>${project.artifactId}</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <configuration>
                <source>${java-version}</source>
                <target>${java-version}</target>
            </configuration>
        </plugin>
        <!--            <plugin>
            <groupId>org.eclipse.jetty</groupId>
            <artifactId>jetty-maven-plugin</artifactId>
            <version>9.2.1.v20140609</version>
            <configuration>
                <systemPropertiesFile>${project.basedir}/src/main/resources/jetty/jetty.properties</systemPropertiesFile>
                <jettyXml>${project.basedir}/src/main/resources/jetty/jetty.xml,${project.basedir}/src/main/resources/jetty/jetty-http.xml,${project.basedir}/src/main/resources/jetty/jetty-ssl.xml,${project.basedir}/src/main/resources/jetty/jetty-https.xml</jettyXml>
                <jettyXml>${project.basedir}/src/main/resources/jetty/jetty.xml,${project.basedir}/src/main/resources/jetty/jetty-http.xml</jettyXml>
                <war>${project.build.directory}/${project.build.finalName}</war>
                <scanIntervalSeconds>1</scanIntervalSeconds>
            </configuration>
        </plugin>-->
        <plugin>
            <groupId>org.apache.tomcat.maven</groupId>
            <artifactId>tomcat7-maven-plugin</artifactId>
            <version>2.2</version>
            <configuration>
                <systemProperties>
                    <spring.profiles.active>dev</spring.profiles.active>
                </systemProperties>
                <path>/</path>
                <url>http://localhost:1234/mymanager</url>
            </configuration>
        </plugin>
    </plugins>
</build>

如有任何建议，我们将不胜感激。

Answer 1

如果 Contract 的结构发生变化，则可能是数据库中存在的旧数据具有不同的结构，无法加载到类 Contract 的实例中。

检查Contract的旧值和Contract的新值的json结构，看看是否有差异。

或者，如果您可以控制 Contract 类，请检查旧版本的 Contract 和新版本，看看数据是否兼容。

想象一下，例如，如果公司名称已从

重构

private String companyName;

到

private String name;

你不能用这个方法提取旧数据

public Contract findByNameIgnoreCase(String name);