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liurunyu

昨天 7634d7ff15b1fa84ea84a51a1ba6e45b11a4aa21

 pipIrr-platform/pipIrr-common/src/main/java/com/dy/common/mybatis/AutoGenerateIdInterceptor.java

@@ -1,16 +1,11 @@
package com.dy.common.mybatis;


import com.dy.common.po.BaseEntity;
import com.dy.common.util.IDLongGenerator;
import org.apache.ibatis.executor.Executor;
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.plugin.*;

import java.lang.reflect.Method;

@@ -27,28 +22,52 @@

    static int MAPPED_STATEMENT_INDEX = 0;
    static int PARAMETER_INDEX = 1;
    static int ROWBOUNDS_INDEX = 2;
    static int RESULT_HANDLER_INDEX = 3;
    static String BASE_FIELD_SET_PRIMARY_KEY_FUNTION_NAME = "setId";
    static String BASE_FIELD_SET_CREATE_TIME_FUNTION_NAME = "setCreateDt";
    static String BASE_FIELD_SET_UPDATE_TIME_FUNTION_NAME = "setUpdateDt";
    static String BASE_FIELD_SET_DELETE_FUNTION_NAME = "setDelete";
    static String BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETID = "setId";
    static String BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETUSERID = "setUserId";
    static String BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETROLEID = "setRoleId";

    public AutoGenerateIdInterceptor() {
        //System.out.println("auto generate primaryKey mybatis plugin start!!!");
    }

    @SuppressWarnings("static-access")
    /**
     * 拦截逻辑实现
     * @param invocation 代理
     * @return Object
     * @throws Throwable 异常
     */
    public Object intercept(Invocation invocation) throws Throwable {
        MappedStatement mappedStatement = (MappedStatement) invocation.getArgs()[MAPPED_STATEMENT_INDEX];
        SqlCommandType commandType = mappedStatement.getSqlCommandType();
        if (commandType.INSERT.equals(SqlCommandType.INSERT)) {
        if (commandType.equals(SqlCommandType.INSERT)) {
            Object entity = invocation.getArgs()[PARAMETER_INDEX];
            if (entity instanceof BaseEntity) {
                Class<? extends Object> entityClass = entity.getClass();
                Method setMt = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_NAME, Long.class) ;
                if(setMt != null){
                    setMt.invoke(entity, new IDLongGenerator().generate());
                //Class<? extends Object> entityClass = entity.getClass();
                Class<?> entityClass = entity.getClass();
                Method setId = null ;
                Method setUserId = null ;
                Method setRoleId = null ;
                try{
                    /*
                    // 添加用户时userId为自动生成主键。roleId存在时是为用户绑角色
                    String jsonString = JSONObject.toJSONString(entity, JSONWriter.Feature.WriteMapNullValue);
                    JSONObject jsonObject = JSONObject.parseObject(jsonString);
                    if(jsonObject.containsKey("userId") && !jsonObject.containsKey("roleId")) {
                        setUserId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETUSERID, Long.class) ;
                        setRoleId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETROLEID, Long.class) ;
                    }else {
                        //有一些实体没有id，例如中间表
                        setId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETID, Long.class) ;
                    }
                    */
                    //有一些实体没有id，例如中间表
                    setId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETID, Long.class) ;
                    // BaUser实体中是setUserId, BaUserRole实体中包含setUserId,和setRoleId
                    setUserId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETUSERID, Long.class) ;
                    setRoleId = entityClass.getMethod(BASE_FIELD_SET_PRIMARY_KEY_FUNTION_SETROLEID, Long.class) ;
                }catch (Exception e){
                    //当entityClass没有setId方法时，会抛出异常
                }
                if(setUserId != null && setRoleId == null){
                    setUserId.invoke(entity, new IDLongGenerator().generate());
                }else if(setId != null){
                    setId.invoke(entity, new IDLongGenerator().generate());
                }
                invocation.getArgs()[PARAMETER_INDEX] = entity;
            }