安装PHP时,make步骤报错make: *** [ext/gd/gd.lo] Error 1 /usr/local/src/LAMP+memcahed+catci/php-5.4.0/ext/gd/gd_ctx.c: In function '_php_image_stream_putc': /usr/local/src/LAMP+memcahed+catci/php-5.4.0/ext/gd/gd_ctx.c:51: error: 'struct gdIOCtx' has no member…
现象: 1.报错:There is a cycle in the hierarchy! 2.返回至前台的json不完整,字段丢失. 错误原因: eg:entity1的属性有list<entitiy2>,entity2的字段中也含有entity1,即常见的双向关联;引发的死循环 解决方案: 1.重写一个vo用于传输json 2.@JsonIgnore…