c# - 接收到的 JSON 截断开头

Question

我正在使用 C# 在我的 Unity 项目中接收 JSON 数组。但是，它有时会在读取过程中遗漏数组的第一部分。

这是读取它的代码:

while(sck.Connected){
    byte[] buffer = new byte[100000];
    int rec = sck.Receive(buffer, 0, buffer.Length, 0);
    Array.Resize(ref buffer, rec);


    text = Encoding.Default.GetString(buffer);   
}

当接收到以下数组时，它以某种方式丢失了第一部分。

[
    {
        "id": 27,
        "question": "What color is #FF0000 in Hexadecimal",
        "answers": [
            {
                "answer": "red",
                "correct": 1
            },
            {
                "answer": "blue",
                "correct": 0
            },
            {
                "answer": "yellow",
                "correct": 0
            },
            {
                "answer": "green",
                "correct": 0
            }
        ]
    },
    {
        "id": 80,
        "question": "Which language is the native language in Uruguay? ",
        "answers": [
            {
                "answer": "Portuguese",
                "correct": 0
            },
            {
                "answer": "Uruguese",
                "correct": 0
            },
            {
                "answer": "English",
                "correct": 0
            },
            {
                "answer": "Spanish",
                "correct": 1
            }
        ]
    },
    {
        "id": 109,
        "question": "What World War II operation was code named 'Barbarossa'?",
        "answers": [
            {
                "answer": "Invasion of Africa",
                "correct": 0
            },
            {
                "answer": "Invasion of The Soviet Union ",
                "correct": 1
            },
            {
                "answer": "Invasion of France",
                "correct": 0
            },
            {
                "answer": "Invasion of Denmark",
                "correct": 0
            }
        ]
    },
    {
        "id": 118,
        "question": "The cassowary and Emu are both flightless birds of which country? ",
        "answers": [
            {
                "answer": "South Africa",
                "correct": 0
            },
            {
                "answer": "India",
                "correct": 0
            },
            {
                "answer": "Brazil",
                "correct": 0
            },
            {
                "answer": "Australia",
                "correct": 1
            }
        ]
    },
    {
        "id": 13,
        "question": "10-12*4=?",
        "answers": [
            {
                "answer": "-38",
                "correct": 1
            },
            {
                "answer": "38",
                "correct": 0
            },
            {
                "answer": "8",
                "correct": 0
            },
            {
                "answer": "-8",
                "correct": 0
            }
        ]
    },
    {
        "id": 96,
        "question": "What is not a type of knitted fabric?",
        "answers": [
            {
                "answer": "Terry",
                "correct": 0
            },
            {
                "answer": "Jersey",
                "correct": 0
            },
            {
                "answer": "Rib",
                "correct": 0
            },
            {
                "answer": "Sateen",
                "correct": 1
            }
        ]
    },
    {
        "id": 33,
        "question": "Which movie involves worm holes, teenagers and a bunny rabbit?",
        "answers": [
            {
                "answer": "Lord of the Rings",
                "correct": 0
            },
            {
                "answer": "Clueless",
                "correct": 0
            },
            {
                "answer": "Donnie Darko",
                "correct": 1
            },
            {
                "answer": "Star Wars",
                "correct": 0
            }
        ]
    },
    {
        "id": 99,
        "question": "Which musician did not die at the age of 27?",
        "answers": [
            {
                "answer": "Kurt Cobain",
                "correct": 0
            },
            {
                "answer": "Amy Winehouse",
                "correct": 0
            },
            {
                "answer": "Janis Joplin",
                "correct": 0
            },
            {
                "answer": "Freddie Mercury",
                "correct": 1
            }
        ]
    },
    {
        "id": 54,
        "question": "What was the apex predator in the 1993 film \"Jurassic Park\"?",
        "answers": [
            {
                "answer": "Tyrannosaurus ",
                "correct": 1
            },
            {
                "answer": "Dilophosauridae",
                "correct": 0
            },
            {
                "answer": "Denver",
                "correct": 0
            },
            {
                "answer": "Velociraptor",
                "correct": 0
            }
        ]
    },
    {
        "id": 49,
        "question": "Who is serving breakfast for Rory Mcllroy?",
        "answers": [
            {
                "answer": "Caroline Wocniacki",
                "correct": 1
            },
            {
                "answer": "Anna Kournikova",
                "correct": 0
            },
            {
                "answer": "Serena Williams",
                "correct": 0
            },
            {
                "answer": "Miss Piggy",
                "correct": 0
            }
        ]
    }
]

数组在 || 处被截断

{"answer":"Clueless","co||rrect":0},{"answer":"Donnie Darko","correct":1}

但是，它处理这个array 很好:

[
    {
        "id": 121,
        "question": "How many miles do the teams race in the Oxford and Cambridge boat race ? ",
        "answers": [
            {
                "answer": "4",
                "correct": 1
            },
            {
                "answer": "1",
                "correct": 0
            },
            {
                "answer": "2",
                "correct": 0
            },
            {
                "answer": "3",
                "correct": 0
            }
        ]
    },
    {
        "id": 61,
        "question": "How many different Formula 1 teams has Kimi Raikkonen driven for up to 2014?",
        "answers": [
            {
                "answer": "2",
                "correct": 0
            },
            {
                "answer": "6",
                "correct": 0
            },
            {
                "answer": "4",
                "correct": 1
            },
            {
                "answer": "10",
                "correct": 0
            }
        ]
    },
    {
        "id": 57,
        "question": "Which muppet is Swedish?",
        "answers": [
            {
                "answer": "Miss Piggy",
                "correct": 0
            },
            {
                "answer": "Chef",
                "correct": 1
            },
            {
                "answer": "Yodel",
                "correct": 0
            },
            {
                "answer": "Gonzo",
                "correct": 0
            }
        ]
    },
    {
        "id": 49,
        "question": "Who is serving breakfast for Rory Mcllroy?",
        "answers": [
            {
                "answer": "Caroline Wocniacki",
                "correct": 1
            },
            {
                "answer": "Anna Kournikova",
                "correct": 0
            },
            {
                "answer": "Serena Williams",
                "correct": 0
            },
            {
                "answer": "Miss Piggy",
                "correct": 0
            }
        ]
    },
    {
        "id": 116,
        "question": "What is the highest active volcano in Europe ? ",
        "answers": [
            {
                "answer": "Vesuvius",
                "correct": 0
            },
            {
                "answer": "Eyjafjallajökull",
                "correct": 0
            },
            {
                "answer": "The sky mountain",
                "correct": 0
            },
            {
                "answer": "Etna",
                "correct": 1
            }
        ]
    },
    {
        "id": 56,
        "question": " In 2013 How many people lived china",
        "answers": [
            {
                "answer": "0,8 billions",
                "correct": 0
            },
            {
                "answer": "0,6 billions",
                "correct": 0
            },
            {
                "answer": "2,0 billions",
                "correct": 0
            },
            {
                "answer": "1,3 billions",
                "correct": 1
            }
        ]
    },
    {
        "id": 47,
        "question": "You have 3 red cars, 42 yellow cars and 21 green cars. How many cars are left if you half all the yellow cars and double the green cars.",
        "answers": [
            {
                "answer": "42",
                "correct": 0
            },
            {
                "answer": "66",
                "correct": 1
            },
            {
                "answer": "3",
                "correct": 0
            },
            {
                "answer": "63",
                "correct": 0
            }
        ]
    },
    {
        "id": 28,
        "question": "If you mix blue and red you will get",
        "answers": [
            {
                "answer": "Green",
                "correct": 0
            },
            {
                "answer": "Orange",
                "correct": 0
            },
            {
                "answer": "Purple",
                "correct": 1
            },
            {
                "answer": "Pink",
                "correct": 0
            }
        ]
    },
    {
        "id": 141,
        "question": "Which spirit is used in a Bloody Mary?",
        "answers": [
            {
                "answer": "Vodka",
                "correct": 1
            },
            {
                "answer": "Rum",
                "correct": 0
            },
            {
                "answer": "Gin",
                "correct": 0
            },
            {
                "answer": "Whisky",
                "correct": 0
            }
        ]
    },
    {
        "id": 45,
        "question": "Which character in the TV series \"Game of Thrones\" is the centre of lust for many males around the world?",
        "answers": [
            {
                "answer": "Queen Freelus",
                "correct": 0
            },
            {
                "answer": "Daenerys Targaryen",
                "correct": 1
            },
            {
                "answer": "Princess Liea",
                "correct": 0
            },
            {
                "answer": "Madam Butterfly",
                "correct": 0
            }
        ]
    }
]

我做错了什么？

Answer 1

看来您的缓冲区不够大。

byte[] buffer = new byte[100000];

我会根据您对代码的需求研究几个不同的选项

1. 增加缓冲区的大小
2. 使用 memory stream
3. Asynchronous Server Socket