攔截mybatis（mybatis-plus）SQL

import java.lang.reflect.Field;
import java.util.Date;
import java.util.Properties;
import org.apache.ibatis.binding.MapperMethod.ParamMap;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.BoundSql;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlCommandType;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Plugin;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.session.Configuration;
import org.apache.shiro.SecurityUtils;import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import lombok.extern.slf4j.Slf4j;

/**
 * mybatis攔截器，自動注入創建人、創建時間、修改人、修改時間
 */
@Slf4j
@Component
@Intercepts({@Signature(type = Executor.class, method = "update", args = {MappedStatement.class, Object.class})})
public class MybatisInterceptor implements Interceptor {

    @Autowired
    private ILogDelService logDelService;

    @Autowired
    private ILogUpService logUpService;

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[0];
        String sqlId = mappedStatement.getId();
        log.debug("------sqlId------" + sqlId);
        SqlCommandType sqlCommandType = mappedStatement.getSqlCommandType();
        Object parameter = invocation.getArgs()[1];
        log.debug("------sqlCommandType------" + sqlCommandType);

        BoundSql boundSql = mappedStatement.getBoundSql(parameter); // BoundSql就是封裝myBatis最終產生的sql類
        Configuration configuration = mappedStatement.getConfiguration(); // 獲取節點的配置
        String sql = SplicSqlUtils.getSql(configuration, boundSql, sqlId); // 獲取到最終的sql語句

        if (parameter == null) {
            return invocation.proceed();
        }
        if (SqlCommandType.INSERT == sqlCommandType) {
            LoginUser sysUser = this.getLoginUser();
            Field[] fields = oConvertUtils.getAllFields(parameter);
            for (Field field : fields) {
                log.debug("------field.name------" + field.getName());
                try {
                    if ("createBy".equals(field.getName())) {
                        field.setAccessible(true);
                        Object local_createBy = field.get(parameter);
                        field.setAccessible(false);
                        if (local_createBy == null || local_createBy.equals("")) {
                            if (sysUser != null) {
                                // 登錄人賬號
                                field.setAccessible(true);
                                field.set(parameter, sysUser.getUsername());
                                field.setAccessible(false);
                            }
                        }
                    }
                    // 注入創建時間
                    if ("createTime".equals(field.getName())) {
                        field.setAccessible(true);
                        Object local_createDate = field.get(parameter);
                        field.setAccessible(false);
                        if (local_createDate == null || local_createDate.equals("")) {
                            field.setAccessible(true);
                            field.set(parameter, new Date());
                            field.setAccessible(false);
                        }
                    }
                    //注入部門編碼
                    if ("sysOrgCode".equals(field.getName())) {
                        field.setAccessible(true);
                        Object local_sysOrgCode = field.get(parameter);
                        field.setAccessible(false);
                        if (local_sysOrgCode == null || local_sysOrgCode.equals("")) {
                            // 獲取登錄用戶信息
                            if (sysUser != null) {
                                field.setAccessible(true);
                                field.set(parameter, sysUser.getOrgCode());
                                field.setAccessible(false);
                            }
                        }
                    }
                } catch (Exception e) {
                }
            }
        }
        if (SqlCommandType.UPDATE == sqlCommandType) {
            // 添加修改記錄
            LogUp logUp = new LogUp();
            logUp.setSqlStr(sql);
            logUp.setCreateTime(DateUtils.getDate());
            logUp.setIsUsed(0);
            logUpService.save(logUp);

            LoginUser sysUser = this.getLoginUser();
            Field[] fields;
            if (parameter instanceof ParamMap) {
                ParamMap<?> p = (ParamMap<?>) parameter;
                //update-begin-author:scott date:20190729 for:批量更新報錯issues/IZA3Q--
                if (p.containsKey("et")) {
                    parameter = p.get("et");
                } else {
                    parameter = p.get("param1");
                }
                //update-end-author:scott date:20190729 for:批量更新報錯issues/IZA3Q-

                //update-begin-author:scott date:20190729 for:更新指定字段時報錯 issues/#516-
                if (parameter == null) {
                    return invocation.proceed();
                }
                //update-end-author:scott date:20190729 for:更新指定字段時報錯 issues/#516-

                fields = oConvertUtils.getAllFields(parameter);
            } else {
                fields = oConvertUtils.getAllFields(parameter);
            }

            for (Field field : fields) {
                log.debug("------field.name------" + field.getName());
                try {
                    if ("updateBy".equals(field.getName())) {
                        //獲取登錄用戶信息
                        if (sysUser != null) {
                            // 登錄賬號
                            field.setAccessible(true);
                            field.set(parameter, sysUser.getUsername());
                            field.setAccessible(false);
                        }
                    }
                    if ("updateTime".equals(field.getName())) {
                        field.setAccessible(true);
                        field.set(parameter, new Date());
                        field.setAccessible(false);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        if (SqlCommandType.DELETE == sqlCommandType) {
            // 添加刪除記錄
            LogDel logDel = new LogDel();
            logDel.setSqlStr(sql);
            logDel.setCreateTime(DateUtils.getDate());
            logDel.setIsUsed(0);
            logDelService.save(logDel);
        }
        return invocation.proceed();
    }

    @Override
    public Object plugin(Object target) {
        return Plugin.wrap(target, this);
    }

    @Override
    public void setProperties(Properties properties) {
        // TODO Auto-generated method stub
    }

    //update-begin--Author:scott  Date:20191213 for：關於使用Quzrtz 開啟線程任務， #465
    private LoginUser getLoginUser() {
        LoginUser sysUser;
        try {
            sysUser = SecurityUtils.getSubject().getPrincipal() != null ? (LoginUser) SecurityUtils.getSubject().getPrincipal() : null;
        } catch (Exception e) {
            //e.printStackTrace();
            sysUser = null;
        }
        return sysUser;
    }
    //update-end--Author:scott  Date:20191213 for：關於使用Quzrtz 開啟線程任務， #465

}