小编Gre*_*dus的帖子

首先,我为再次提出这个问题而道歉.最后一次是3个月前,我发现了一种权宜之计,这种方法可以用来进行概念验证.不幸的是,我真的需要让它完全正常工作

作为当前项目的一部分,我需要能够在向Spring服务器发送请求和从Spring服务器发送请求时自动将对象自动序列化为JSON.我被告知要用杰克逊这个.问题是,每次我将Jackson添加到它将构建的POM时,但是当servlet找不到com.fasterxml.jackson.core.JsonProcessingException时抛出java.lang.NoClassDefError.我已经检查过,JsonProcessingException是应该在WAR中预期的地方.

我的怀疑是,导致Spring试图为servlet自动装配Jackson解析器,而且无法找到所有依赖项.我不知道为什么会这样,因为它们应该被Maven正确引入.

我的pom.xml与公司细节一般化:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.company.department</groupId>
        <artifactId>project</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>project-restservice</artifactId>

    <packaging>war</packaging>
    <name>projectMaven Restservice</name>

    <dependencies>
        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>project-common</artifactId>
            <version>1.0-SNAPSHOT</version>

        </dependency>
        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>project-processor</artifactId>
            <version>1.0-SNAPSHOT</version>

        </dependency>

        <dependency>
            <groupId>${project.groupId}</groupId>
            <artifactId>project-ui-service</artifactId>
            <version>1.0-SNAPSHOT</version>

        </dependency>
        <dependency>
            <groupId>com.qualcomm.qes.logging</groupId>
            <artifactId>project-logger</artifactId>
            <scope>compile</scope>
            <exclusions>
                <exclusion>
                    <artifactId>org.slf4j</artifactId>
                    <groupId>com.springsource.slf4j.api</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>org.slf4j</artifactId>
                    <groupId>com.springsource.slf4j.log4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>com.qualcomm.qes.sso.downstream</groupId>
            <artifactId>sso-downstream-auth</artifactId>
            <exclusions>
                <exclusion>
                    <artifactId>bcprov-jdk15on</artifactId>
                    <groupId>bouncycastle</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <!-- SpringSource -->

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>org.springframework.web.servlet</artifactId>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId> …