网上有关springboot集成sap有各种各样的说法,我这里提供一个我调通的方案。如下pom配置,sapjco3.dll 放在"%java_home%\bin\",否则报nested exception is java.lang.noclassdeffounderror: could not initialize class com.sap.conn.jco.jco,服务器部署时也是这样放置,
sapjco3.dll和sapjco3.jar放在resources\lib下
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelversion>4.0.0</modelversion> <parent> <groupid>com.demo</groupid> <artifactid>opm</artifactid> <version>1.0-snapshot</version> </parent> <groupid>com.demo</groupid> <artifactid>open-manager</artifactid> <packaging>jar</packaging> <name>open-manager</name> <description>open-manager</description> <properties> <maven.compiler.source>8</maven.compiler.source> <maven.compiler.target>8</maven.compiler.target> </properties> <dependencies> <dependency> <groupid>com.demo</groupid> <artifactid>common</artifactid> <!--不加版本无法引用--> <version>1.0-snapshot</version> </dependency> <dependency> <groupid>com.sapjco3</groupid> <artifactid>sapjco</artifactid> <version>3.0</version> <scope>system</scope> <systempath>${pom.basedir}/src/main/resources/lib/sapjco3.jar</systempath> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-actuator</artifactid> </dependency> </dependencies> <profiles> <!-- 本地环境 --> <profile> <id>local</id> <properties> <spring.profiles.active>local</spring.profiles.active> </properties> <activation> <activebydefault>true</activebydefault> </activation> </profile> <!-- 开发环境 --> <profile> <id>dev</id> <properties> <spring.profiles.active>dev</spring.profiles.active> </properties> </profile> <!-- 生产环境 --> <profile> <id>prod</id> <properties> <spring.profiles.active>prod</spring.profiles.active> </properties> </profile> </profiles> <build> <plugins> <plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> <configuration> <!--为false,取消本地的system的jar打入--> <includesystemscope>true</includesystemscope> </configuration> </plugin> <plugin> <groupid>org.apache.maven.plugins</groupid> <artifactid>maven-resources-plugin</artifactid> <version>3.3.0</version> </plugin> </plugins> <resources> <resource> <directory>src/main/webapp</directory> </resource> <resource> <directory>src/main/resources</directory> <!-- true表示利用占位符进行替换 --> <filtering>true</filtering> <includes> <!--maven 资源过滤是为文本文件设计的(如属性文件、xml 等)--> <include>**/*.properties</include> <include>application.yml</include> <!-- ${spring.profiles.active}就是我们指定的环境,会被替换掉 --> <include>application-${spring.profiles.active}.yml</include> <include>**/*.xml</include> <include>**/*.html</include> <include>**/*.json</include> <include>webapp/</include> </includes> <excludes> <!-- 排除目录 --> <exclude>lib/**</exclude> <exclude>**/*.jar</exclude> <exclude>**/*.dll</exclude> <!--sapjco3.dll "%java_home%\bin\"--> <exclude>**/*.jks</exclude> <exclude>**/*.png</exclude> </excludes> </resource> <!-- 新增:单独处理二进制文件(不进行过滤) --> <resource> <directory>src/main/resources/lib</directory> <filtering>false</filtering> <targetpath>boot-inf/lib</targetpath> <!-- 关键修改 --> <includes> <include>sapjco3.jar</include> </includes> </resource> <!-- 处理其他资源 --> <resource> <directory>src/main/resources</directory> <filtering>false</filtering> <targetpath>boot-inf/classes</targetpath> <excludes> <exclude>lib/**</exclude> <!-- 排除已单独处理的 lib 目录 --> </excludes> <includes> <include>**/*.jks</include> <include>**/*.png</include> </includes> </resource> </resources> </build> </project>
package com.demo.openmanager.sap; import com.demo.common.util.stringutils; import com.sap.conn.jco.jcodestination; import com.sap.conn.jco.jcodestinationmanager; import com.sap.conn.jco.jcoexception; import com.sap.conn.jco.ext.destinationdataprovider; import lombok.extern.slf4j.slf4j; import org.springframework.beans.factory.annotation.value; import java.io.file; import java.io.filenotfoundexception; import java.io.fileoutputstream; import java.io.ioexception; import java.util.properties; @slf4j public class xpjco { @value("${sap.host}") private string sap_host; @value("${sap.client}") private string sap_client; @value("${sap.sysno}") private string sap_sys_no; @value("${sap.user}") private string sap_user; @value("${sap.pass}") private string sap_pass; @value("${sap.lang}") private string sap_lang; @value("${sap.poolcapacity}") private string sap_pool_capacity; @value("${sap.peaklimit}") private string sap_peak_limit; @value("${sap.jcosaprouter}") private string sap_jco_saprouter; public synchronized jcodestination getjcodestination(string filename) { jcodestination destination = null; try { destination = jcodestinationmanager.getdestination(filename); } catch (jcoexception e) { e.printstacktrace(); } return destination; } private static boolean creatsappros(string filename, string host, string sysno, string client, string user, string pass, string lang, string pool_capacity, string peak_limit, string jco_saprouter) { properties pros = new properties(); boolean iscreate = false; pros.clear(); // 先清空 pros.setproperty(destinationdataprovider.jco_ashost, host); pros.setproperty(destinationdataprovider.jco_sysnr, sysno); pros.setproperty(destinationdataprovider.jco_client, client); pros.setproperty(destinationdataprovider.jco_user, user); pros.setproperty(destinationdataprovider.jco_passwd, pass); pros.setproperty(destinationdataprovider.jco_lang, lang); pros.setproperty(destinationdataprovider.jco_pool_capacity, pool_capacity); pros.setproperty(destinationdataprovider.jco_peak_limit, peak_limit); if (stringutils.isnoneblank(jco_saprouter)) { pros.setproperty(destinationdataprovider.jco_saprouter, jco_saprouter); } iscreate = createfiles(filename, pros); if (iscreate) { return true; } else { return false; } } /** * @param filename * @return */ private static boolean isfileexist(string filename) { file file = new file(filename + ".jcodestination"); log.info("jco path:" + file.getpath()); log.info("jco absolutepath:" + file.getabsolutepath()); // 最后会放在q:\ideawork\opm\tz02_ywk_jco.jcodestination // 环境上是放在启动jar包所在同级目录 return file.exists(); } /** * @param filename * @param pros * @return */ private static boolean createfiles(string filename, properties pros) { file file = new file(filename + ".jcodestination"); fileoutputstream fos = null; if (!file.exists()) { try { log.info("********* 正在写入文件 **********"); fos = new fileoutputstream(file, false); pros.store(fos, "author: ljb"); fos.close(); return true; } catch (filenotfoundexception e) { log.info("-------- 找不到文件! ---------"); e.printstacktrace(); return false; } catch (ioexception e) { log.info("-------- 内容写入失败! ---------"); e.printstacktrace(); return false; } finally { try { fos.close(); } catch (ioexception e) { e.printstacktrace(); } } } else { return false; } } public synchronized jcodestination getjcodestination() { boolean isexist = false; // 判断文件是否存在 boolean iscreate = false; // 创建pro文件 jcodestination destination; string filename = "tz02_ywk_jco"; isexist = xpjco.isfileexist(filename); log.info("-- 获取jcodestination isexist==" + isexist); if (isexist == true) { try { destination = jcodestinationmanager.getdestination(filename); return destination; } catch (jcoexception e) { log.info("-- 获取jcodestination失敗! --"); e.printstacktrace(); return null; } } else { iscreate = xpjco.creatsappros(filename, sap_host, sap_sys_no, sap_client, sap_user, sap_pass, sap_pass, sap_pool_capacity, sap_peak_limit, sap_jco_saprouter); if (iscreate == true) { try { destination = jcodestinationmanager.getdestination(filename); log.info("获取jcodestination!成功"); return destination; } catch (jcoexception e) { log.info("无法获取jcodestination!"); e.printstacktrace(); return null; } } else { // 如果文件不存在 return null; } } } }
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