maven deploy 成功但是报错400

上周发现Nexus的release Repositories 设置的是Allow Redeploy，对于正式包来说不升级版本直接覆盖是很危险的行为，于是改为Disable Redeploy，结果本周有部分同学反馈正式包打包出错，而且就算事新的version也出错。

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project marketing-api: Failed to deploy artifacts: Could not transfer artifact com.yangt.smc:marketing-api:jar:1.6.0 from/to yangt (http://***.***.**/nexus/content/repositories/releases/): Failed to transfer file: http://***.***.**/nexus/content/repositories/releases/com/yangt/smc/marketing-api/1.6.0/marketing-api-1.6.0.jar. Return code is: 400, ReasonPhrase: Bad Request. -> [Help 1]

于是根据错误信息上网搜了下，略过排查过程（巨艰辛，很多case不是我这个情况），最终受 java - Nexus accepts upload but says it failed - Stack Overflow 启发，用mvn help:effective-pom 看了一下，结果发现存在2个deploy，原因是我配置了          

 <plugin>

                <groupId>org.apache.maven.plugins</groupId>

                <!-- explicitly define maven-deploy-plugin after other to force exec

                    order -->

                <artifactId>maven-deploy-plugin</artifactId>

                <version>2.8.2</version>

                <executions>

                    <execution>

                        <id>deploy</id>

                        <phase>deploy</phase>

                        <goals>

                            <goal>deploy</goal>

                        </goals>

                    </execution>

                </executions>

            </plugin>

因为默认自带了default-deploy，结果又配置了一个deploy导致会deploy 2次，第二次的时候就会报错。将executions 整个配置注释掉就行了。

同时受到这个因素影响，之前配置的source 是在deploy 环节：

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>3.0.1</version>
                <executions>
                    <execution>
                        <id>attach-sources</id>
                        <phase>deploy</phase>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

这样的话实际在deploy 的时候并不能上传源码，之前之所以能行是因为存在2次deploy的过程。所以这里需要调整下，变成在install 的时候进行：

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-source-plugin</artifactId>
                <version>3.0.1</version>
                <executions>
                    <execution>
                        <id>attach-sources</id>
                        <phase>install</phase>
                        <goals>
                            <goal>jar</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>