我从前端编辑控件接收到一个JArray对象。我想检索并连接所有“文本”值。
理想的结果应该是一个字符串：
田纳西州的大象保护区成立于1995年，占地2,700英亩。这是下划线文本，这是斜体文本，这是粗体文本

[
  {
    "type": "paragraph",
    "attrs": {
      "style": null,
      "class": null,
      "id": null
    },
    "content": [
      {
        "type": "text",
        "text": "Established in 1995, the Elephant Sanctuary in Tennessee has provided ..."
      },
      {
        "type": "text",
        "marks": [
          {
            "type": "strong"
          }
        ],
        "text": "spans 2,700 acres."
      }
    ]
  },
  {
    "type": "paragraph",
    "attrs": {
      "style": null,
      "class": null,
      "id": null
    }
  },
  {
    "type": "paragraph",
    "attrs": {
      "style": null,
      "class": null,
      "id": null
    },
    "content": [
      {
        "type": "text",
        "marks": [
          {
            "type": "u"
          }
        ],
        "text": "This is underlined text."
      }
    ]
  },
  {
    "type": "paragraph",
    "attrs": {
      "style": null,
      "class": null,
      "id": null
    },
    "content": [
      {
        "type": "text",
        "marks": [
          {
            "type": "em"
          }
        ],
        "text": "This is italic text."
      }
    ]
  },
  {
    "type": "paragraph",
    "attrs": {
      "style": null,
      "class": null,
      "id": null
    },
    "content": [
      {
        "type": "text",
        "marks": [
          {
            "type": "strong"
          }
        ],
        "text": "This is bold text"
      }
    ]
  }
]