ES权威指南[官方文档学习笔记]-15 highlighting our searches

高亮选择结果

增加一个高亮参数：
GET /megacorp/employee/_search
{
"query" : {
"match_phrase" : {
"about" : "rock climbing"
}
},
"highlight": {
"fields" : {
"about" : {}
}
}
}

{
...
"hits": {
"total":      1,
"max_score":  0.23013961,
"hits": [
{
...
"_score":         0.23013961,
"_source": {
"first_name":  "John",
"last_name":   "Smith",
"age":         25,
"about":       "I love to go rock climbing",
"interests": [ "sports", "music" ]
},
"highlight": {
"about": [
"I love to go <em>rock</em> <em>climbing</em>"
]
}
}
]
}
}