java如何使用BeanFactoryPostProcessor注入Bean
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使用BeanFactoryPostProcessor注入Bean:
它与 BeanPostProcessor接口类似,可以对bean的定义(配置元数据)进行处理;也就是spring ioc运行BeanFactoryPostProcessor在容器实例化任何其他的bean之前读取配置元数据,并有可能修改它;如果业务需要,可以配置多个BeanFactoryPostProcessor的实现类,通过"order"控制执行次序(要实现Ordered接口)。
第一步:创建实现SpringUtils 接口工具(组件)来获取spring bean
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.stereotype.Component;
@Component
public class SpringUtils implements BeanFactoryPostProcessor {
/** Spring应用上下文环境 \*/
private static ConfigurableListableBeanFactory beanFactory;
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException
{
SpringUtils.beanFactory = beanFactory;
}
@SuppressWarnings("unchecked")
public static T getBean(String name) throws BeansException
{
return (T) beanFactory.getBean(name);
}
public static T getBean(Class clz) throws BeansException
{
T result = (T) beanFactory.getBean(clz);
return result;
}
}第二步:创建Groovy脚本装载类,动态解析脚本为Class
package com.example.groovy.testgroovy.task;
import groovy.lang.GroovyClassLoader;
public class GroovyUtils {
private final static ClassLoader classLoader = GroovyUtils.class.getClassLoader();//获取当前类装载器
//ClassLoader:就是类的装载器,它使JVM可以动态的载入Java类,JVM并不需要知道从什么地方(本地文件、网络等)载入Java类,这些都由ClassLoader完成。
public final static GroovyClassLoader groovyClassLoader = new GroovyClassLoader(classLoader);
//GroovyClassLoader:负责在运行时编译groovy源代码为Class的工作,从而使Groovy实现了将groovy源代码动态加载为Class的功能。
/**
* .
* 获取实例化对象
* @param script groovy脚本内容
* @param
* @return
* @throws IllegalAccessException
* @throws InstantiationException
*/
public static T instanceTaskGroovyScript(String script) throws IllegalAccessException, InstantiationException {
Class taskClz = groovyClassLoader.parseClass(script);
T instance = (T) taskClz.newInstance();
return instance;
}
}第三步:读取脚本内容,执行脚本
@Slf4j
@Component
public class CallAnalysisGroovyTask {
/**
* .
* 读取脚本内容
*
* @return
*/
public String getGroovy() {
String context = "";
try {
String path = "E:\\IDEAFile\\testgroovy\\src\\main\\resources\\groovy\\LoadBean.groovy";
context = FileUtils.readFileToString(new File(path));//将脚本内容转为字符串
} catch (IOException e) {
log.error("file is not found[{}]", e);
}
return context;
}
/**
* .
* 执行groovy脚本
*
* @param script
*/
public void execGroovy(String script) {
try {
Runnable runnable = GroovyUtils.instanceTaskGroovyScript(script);//获取实例对象
runnable.run();//调用脚本方法
} catch (Exception t) {
log.error("execGroovy file {} error", script);
}
}
}第四步:在resources目录下创建.groovy文件
@Slf4j
class LoadBean implements Runnable {
/**
* .
* Groovy获取Bean
*/
@Override
void run() {
log.info("Groovy开始执行,当前类{}", this.getClass())
ScriptService service = SpringUtils.getBean(ScriptService.class)
log.info("ApplicationContext获取对象[{}]", service.class)
List
基本
文件
流程
错误
SQL
调试
- 请求信息 : 2026-05-21 12:42:11 HTTP/1.1 GET : /article/iedoid.html
- 运行时间 : 1.5059s ( Load:0.0063s Init:0.0011s Exec:1.4880s Template:0.0105s )
- 吞吐率 : 0.66req/s
- 内存开销 : 2,238.50 kb
- 查询信息 : 12 queries 5 writes
- 文件加载 : 36
- 缓存信息 : 0 gets 0 writes
- 配置加载 : 130
- 会话信息 : SESSION_ID=651n9vj4jpejf8prdcr6l9vm97
- /www/wwwroot/tsicrk.com/index.php ( 1.09 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/ThinkPHP.php ( 4.61 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage.class.php ( 1.37 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Storage/Driver/File.class.php ( 3.52 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Mode/common.php ( 2.82 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Common/functions.php ( 53.56 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Hook.class.php ( 4.01 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/App.class.php ( 13.49 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Dispatcher.class.php ( 14.79 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Route.class.php ( 13.36 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Controller.class.php ( 11.23 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/View.class.php ( 7.59 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ContentReplaceBehavior.class.php ( 1.91 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Conf/convention.php ( 11.15 KB )
- /www/wwwroot/tsicrk.com/App/Common/Conf/config.php ( 2.14 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Lang/zh-cn.php ( 2.55 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Conf/debug.php ( 1.49 KB )
- /www/wwwroot/tsicrk.com/App/Home/Conf/config.php ( 0.31 KB )
- /www/wwwroot/tsicrk.com/App/Home/Common/function.php ( 3.33 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ReadHtmlCacheBehavior.class.php ( 5.62 KB )
- /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php ( 6.02 KB )
- /www/wwwroot/tsicrk.com/App/Home/Controller/CommController.class.php ( 1.60 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Model.class.php ( 60.11 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php ( 32.43 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db/Driver/Pdo.class.php ( 16.74 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache.class.php ( 3.83 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Cache/Driver/File.class.php ( 5.87 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template.class.php ( 28.16 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib/Cx.class.php ( 22.40 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Template/TagLib.class.php ( 9.16 KB )
- /www/wwwroot/tsicrk.com/App/Runtime/Cache/Home/7540f392f42b28b481b30614275e4e55.php ( 17.71 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
- /www/wwwroot/tsicrk.com/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
- [ app_init ] --START--
- Run Behavior\BuildLiteBehavior [ RunTime:0.000005s ]
- [ app_init ] --END-- [ RunTime:0.000033s ]
- [ app_begin ] --START--
- Run Behavior\ReadHtmlCacheBehavior [ RunTime:0.000271s ]
- [ app_begin ] --END-- [ RunTime:0.000303s ]
- [ view_parse ] --START--
- [ template_filter ] --START--
- Run Behavior\ContentReplaceBehavior [ RunTime:0.000063s ]
- [ template_filter ] --END-- [ RunTime:0.000094s ]
- Run Behavior\ParseTemplateBehavior [ RunTime:0.006866s ]
- [ view_parse ] --END-- [ RunTime:0.006896s ]
- [ view_filter ] --START--
- Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000192s ]
- [ view_filter ] --END-- [ RunTime:0.000213s ]
- [ app_end ] --START--
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`pid`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') LIMIT 1' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1
- 1064:You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1
[ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= )
- [8] Undefined index: pid /www/wwwroot/tsicrk.com/App/Home/Controller/ArticleController.class.php 第 47 行.
- [8] Undefined index: db_host /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 120 行.
- [8] Undefined index: db_port /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 121 行.
- [8] Undefined index: db_name /www/wwwroot/tsicrk.com/ThinkPHP/Library/Think/Db.class.php 第 122 行.

1.5059s
